21703016

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 46785600

約数和(自身を除く): 25082584

約数列:

[1, 2, 4, 8, 17, 19, 34, 37, 38, 68, 74, 76, 136, 148, 152, 227, 296, 323, 454, 629, 646, 703, 908, 1258, 1292, 1406, 1816, 2516, 2584, 2812, 3859, 4313, 5032, 5624, 7718, 8399, 8626, 11951, 15436, 16798, 17252, 23902, 30872, 33596, 34504, 47804, 67192, 73321, 95608, 142783, 146642, 159581, 285566, 293284, 319162, 571132, 586568, 638324, 1142264, 1276648, 2712877, 5425754, 10851508, 21703016]

約数ペア:

[(1, 21703016), (2, 10851508), (4, 5425754), (8, 2712877), (17, 1276648), (19, 1142264), (34, 638324), (37, 586568), (38, 571132), (68, 319162), (74, 293284), (76, 285566), (136, 159581), (148, 146642), (152, 142783), (227, 95608), (296, 73321), (323, 67192), (454, 47804), (629, 34504), (646, 33596), (703, 30872), (908, 23902), (1258, 17252), (1292, 16798), (1406, 15436), (1816, 11951), (2516, 8626), (2584, 8399), (2812, 7718), (3859, 5624), (4313, 5032)]