21925410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3307}}^1$

素因数の和:3347

約数の個数: 64

約数和(自身を含む): 60020352

約数和(自身を除く): 38094942

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3307, 3315, 6614, 6630, 9921, 16535, 19842, 33070, 42991, 49605, 56219, 85982, 99210, 112438, 128973, 168657, 214955, 257946, 281095, 337314, 429910, 562190, 644865, 730847, 843285, 1289730, 1461694, 1686570, 2192541, 3654235, 4385082, 7308470, 10962705, 21925410]

約数ペア:

[(1, 21925410), (2, 10962705), (3, 7308470), (5, 4385082), (6, 3654235), (10, 2192541), (13, 1686570), (15, 1461694), (17, 1289730), (26, 843285), (30, 730847), (34, 644865), (39, 562190), (51, 429910), (65, 337314), (78, 281095), (85, 257946), (102, 214955), (130, 168657), (170, 128973), (195, 112438), (221, 99210), (255, 85982), (390, 56219), (442, 49605), (510, 42991), (663, 33070), (1105, 19842), (1326, 16535), (2210, 9921), (3307, 6630), (3315, 6614)]