21756870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 59014080

約数和(自身を除く): 37257210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 90, 122, 135, 183, 270, 305, 366, 549, 610, 915, 1098, 1321, 1647, 1830, 2642, 2745, 3294, 3963, 5490, 6605, 7926, 8235, 11889, 13210, 16470, 19815, 23778, 35667, 39630, 59445, 71334, 80581, 118890, 161162, 178335, 241743, 356670, 402905, 483486, 725229, 805810, 1208715, 1450458, 2175687, 2417430, 3626145, 4351374, 7252290, 10878435, 21756870]

約数ペア:

[(1, 21756870), (2, 10878435), (3, 7252290), (5, 4351374), (6, 3626145), (9, 2417430), (10, 2175687), (15, 1450458), (18, 1208715), (27, 805810), (30, 725229), (45, 483486), (54, 402905), (61, 356670), (90, 241743), (122, 178335), (135, 161162), (183, 118890), (270, 80581), (305, 71334), (366, 59445), (549, 39630), (610, 35667), (915, 23778), (1098, 19815), (1321, 16470), (1647, 13210), (1830, 11889), (2642, 8235), (2745, 7926), (3294, 6605), (3963, 5490)]