21091248

素因数分解:

$2^4\times 3^2\times {\mathrm{149}}^1\times {\mathrm{983}}^1$

素因数の和:1146

約数の個数: 60

約数和(自身を含む): 59482800

約数和(自身を除く): 38391552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 149, 298, 447, 596, 894, 983, 1192, 1341, 1788, 1966, 2384, 2682, 2949, 3576, 3932, 5364, 5898, 7152, 7864, 8847, 10728, 11796, 15728, 17694, 21456, 23592, 35388, 47184, 70776, 141552, 146467, 292934, 439401, 585868, 878802, 1171736, 1318203, 1757604, 2343472, 2636406, 3515208, 5272812, 7030416, 10545624, 21091248]

約数ペア:

[(1, 21091248), (2, 10545624), (3, 7030416), (4, 5272812), (6, 3515208), (8, 2636406), (9, 2343472), (12, 1757604), (16, 1318203), (18, 1171736), (24, 878802), (36, 585868), (48, 439401), (72, 292934), (144, 146467), (149, 141552), (298, 70776), (447, 47184), (596, 35388), (894, 23592), (983, 21456), (1192, 17694), (1341, 15728), (1788, 11796), (1966, 10728), (2384, 8847), (2682, 7864), (2949, 7152), (3576, 5898), (3932, 5364)]