21435736

素因数分解:

$2^3\times 7^2\times {\mathrm{149}}^1\times {\mathrm{367}}^1$

素因数の和:536

約数の個数: 48

約数和(自身を含む): 47196000

約数和(自身を除く): 25760264

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 149, 196, 298, 367, 392, 596, 734, 1043, 1192, 1468, 2086, 2569, 2936, 4172, 5138, 7301, 8344, 10276, 14602, 17983, 20552, 29204, 35966, 54683, 58408, 71932, 109366, 143864, 218732, 382781, 437464, 765562, 1531124, 2679467, 3062248, 5358934, 10717868, 21435736]

約数ペア:

[(1, 21435736), (2, 10717868), (4, 5358934), (7, 3062248), (8, 2679467), (14, 1531124), (28, 765562), (49, 437464), (56, 382781), (98, 218732), (149, 143864), (196, 109366), (298, 71932), (367, 58408), (392, 54683), (596, 35966), (734, 29204), (1043, 20552), (1192, 17983), (1468, 14602), (2086, 10276), (2569, 8344), (2936, 7301), (4172, 5138)]