21130119640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{59281}}^1$

素因数の和:59385

約数の個数: 128

約数和(自身を含む): 58048934400

約数和(自身を除く): 36918814760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 67, 70, 76, 95, 133, 134, 140, 152, 190, 266, 268, 280, 335, 380, 469, 532, 536, 665, 670, 760, 938, 1064, 1273, 1330, 1340, 1876, 2345, 2546, 2660, 2680, 3752, 4690, 5092, 5320, 6365, 8911, 9380, 10184, 12730, 17822, 18760, 25460, 35644, 44555, 50920, 59281, 71288, 89110, 118562, 178220, 237124, 296405, 356440, 414967, 474248, 592810, 829934, 1126339, 1185620, 1659868, 2074835, 2252678, 2371240, 3319736, 3971827, 4149670, 4505356, 5631695, 7884373, 7943654, 8299340, 9010712, 11263390, 15768746, 15887308, 16598680, 19859135, 22526780, 27802789, 31537492, 31774616, 39421865, 39718270, 45053560, 55605578, 63074984, 75464713, 78843730, 79436540, 111211156, 139013945, 150929426, 157687460, 158873080, 222422312, 278027890, 301858852, 315374920, 377323565, 528252991, 556055780, 603717704, 754647130, 1056505982, 1112111560, 1509294260, 2113011964, 2641264955, 3018588520, 4226023928, 5282529910, 10565059820, 21130119640]

約数ペア:

[(1, 21130119640), (2, 10565059820), (4, 5282529910), (5, 4226023928), (7, 3018588520), (8, 2641264955), (10, 2113011964), (14, 1509294260), (19, 1112111560), (20, 1056505982), (28, 754647130), (35, 603717704), (38, 556055780), (40, 528252991), (56, 377323565), (67, 315374920), (70, 301858852), (76, 278027890), (95, 222422312), (133, 158873080), (134, 157687460), (140, 150929426), (152, 139013945), (190, 111211156), (266, 79436540), (268, 78843730), (280, 75464713), (335, 63074984), (380, 55605578), (469, 45053560), (532, 39718270), (536, 39421865), (665, 31774616), (670, 31537492), (760, 27802789), (938, 22526780), (1064, 19859135), (1273, 16598680), (1330, 15887308), (1340, 15768746), (1876, 11263390), (2345, 9010712), (2546, 8299340), (2660, 7943654), (2680, 7884373), (3752, 5631695), (4690, 4505356), (5092, 4149670), (5320, 3971827), (6365, 3319736), (8911, 2371240), (9380, 2252678), (10184, 2074835), (12730, 1659868), (17822, 1185620), (18760, 1126339), (25460, 829934), (35644, 592810), (44555, 474248), (50920, 414967), (59281, 356440), (71288, 296405), (89110, 237124), (118562, 178220)]