20909532

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1087}}^1$

素因数の和:1330

約数の個数: 48

約数和(自身を含む): 56053760

約数和(自身を除く): 35144228

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 229, 458, 687, 916, 1087, 1374, 1603, 2174, 2748, 3206, 3261, 4348, 4809, 6412, 6522, 7609, 9618, 13044, 15218, 19236, 22827, 30436, 45654, 91308, 248923, 497846, 746769, 995692, 1493538, 1742461, 2987076, 3484922, 5227383, 6969844, 10454766, 20909532]

約数ペア:

[(1, 20909532), (2, 10454766), (3, 6969844), (4, 5227383), (6, 3484922), (7, 2987076), (12, 1742461), (14, 1493538), (21, 995692), (28, 746769), (42, 497846), (84, 248923), (229, 91308), (458, 45654), (687, 30436), (916, 22827), (1087, 19236), (1374, 15218), (1603, 13044), (2174, 9618), (2748, 7609), (3206, 6522), (3261, 6412), (4348, 4809)]