21005160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15913}}^1$

素因数の和:15938

約数の個数: 64

約数和(自身を含む): 68748480

約数和(自身を除く): 47743320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15913, 31826, 47739, 63652, 79565, 95478, 127304, 159130, 175043, 190956, 238695, 318260, 350086, 381912, 477390, 525129, 636520, 700172, 875215, 954780, 1050258, 1400344, 1750430, 1909560, 2100516, 2625645, 3500860, 4201032, 5251290, 7001720, 10502580, 21005160]

約数ペア:

[(1, 21005160), (2, 10502580), (3, 7001720), (4, 5251290), (5, 4201032), (6, 3500860), (8, 2625645), (10, 2100516), (11, 1909560), (12, 1750430), (15, 1400344), (20, 1050258), (22, 954780), (24, 875215), (30, 700172), (33, 636520), (40, 525129), (44, 477390), (55, 381912), (60, 350086), (66, 318260), (88, 238695), (110, 190956), (120, 175043), (132, 159130), (165, 127304), (220, 95478), (264, 79565), (330, 63652), (440, 47739), (660, 31826), (1320, 15913)]