21056688

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 120

約数和(自身を含む): 62674560

約数和(自身を除く): 41617872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 53, 62, 72, 89, 93, 106, 124, 144, 159, 178, 186, 212, 248, 267, 279, 318, 356, 372, 424, 477, 496, 534, 558, 636, 712, 744, 801, 848, 954, 1068, 1116, 1272, 1424, 1488, 1602, 1643, 1908, 2136, 2232, 2544, 2759, 3204, 3286, 3816, 4272, 4464, 4717, 4929, 5518, 6408, 6572, 7632, 8277, 9434, 9858, 11036, 12816, 13144, 14151, 14787, 16554, 18868, 19716, 22072, 24831, 26288, 28302, 29574, 33108, 37736, 39432, 42453, 44144, 49662, 56604, 59148, 66216, 75472, 78864, 84906, 99324, 113208, 118296, 132432, 146227, 169812, 198648, 226416, 236592, 292454, 339624, 397296, 438681, 584908, 679248, 877362, 1169816, 1316043, 1754724, 2339632, 2632086, 3509448, 5264172, 7018896, 10528344, 21056688]

約数ペア:

[(1, 21056688), (2, 10528344), (3, 7018896), (4, 5264172), (6, 3509448), (8, 2632086), (9, 2339632), (12, 1754724), (16, 1316043), (18, 1169816), (24, 877362), (31, 679248), (36, 584908), (48, 438681), (53, 397296), (62, 339624), (72, 292454), (89, 236592), (93, 226416), (106, 198648), (124, 169812), (144, 146227), (159, 132432), (178, 118296), (186, 113208), (212, 99324), (248, 84906), (267, 78864), (279, 75472), (318, 66216), (356, 59148), (372, 56604), (424, 49662), (477, 44144), (496, 42453), (534, 39432), (558, 37736), (636, 33108), (712, 29574), (744, 28302), (801, 26288), (848, 24831), (954, 22072), (1068, 19716), (1116, 18868), (1272, 16554), (1424, 14787), (1488, 14151), (1602, 13144), (1643, 12816), (1908, 11036), (2136, 9858), (2232, 9434), (2544, 8277), (2759, 7632), (3204, 6572), (3286, 6408), (3816, 5518), (4272, 4929), (4464, 4717)]