21331330286

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{541}}^1\times {\mathrm{653}}^1$

素因数の和:1449

約数の個数: 64

約数和(自身を含む): 38792977920

約数和(自身を除く): 17461647634

約数列:

[1, 2, 7, 14, 19, 38, 133, 227, 266, 454, 541, 653, 1082, 1306, 1589, 3178, 3787, 4313, 4571, 7574, 8626, 9142, 10279, 12407, 20558, 24814, 30191, 60382, 71953, 86849, 122807, 143906, 148231, 173698, 245614, 296462, 353273, 706546, 859649, 1037617, 1719298, 2075234, 2333333, 2472911, 2816389, 4666666, 4945822, 5632778, 6712187, 13424374, 16333331, 19714723, 32666662, 39429446, 46985309, 80192971, 93970618, 160385942, 561350797, 1122701594, 1523666449, 3047332898, 10665665143, 21331330286]

約数ペア:

[(1, 21331330286), (2, 10665665143), (7, 3047332898), (14, 1523666449), (19, 1122701594), (38, 561350797), (133, 160385942), (227, 93970618), (266, 80192971), (454, 46985309), (541, 39429446), (653, 32666662), (1082, 19714723), (1306, 16333331), (1589, 13424374), (3178, 6712187), (3787, 5632778), (4313, 4945822), (4571, 4666666), (7574, 2816389), (8626, 2472911), (9142, 2333333), (10279, 2075234), (12407, 1719298), (20558, 1037617), (24814, 859649), (30191, 706546), (60382, 353273), (71953, 296462), (86849, 245614), (122807, 173698), (143906, 148231)]