21655284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3631}}^1$

素因数の和:3716

約数の個数: 48

約数和(自身を含む): 58576896

約数和(自身を除く): 36921612

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3631, 5964, 7262, 10893, 14524, 21786, 25417, 43572, 50834, 76251, 101668, 152502, 257801, 305004, 515602, 773403, 1031204, 1546806, 1804607, 3093612, 3609214, 5413821, 7218428, 10827642, 21655284]

約数ペア:

[(1, 21655284), (2, 10827642), (3, 7218428), (4, 5413821), (6, 3609214), (7, 3093612), (12, 1804607), (14, 1546806), (21, 1031204), (28, 773403), (42, 515602), (71, 305004), (84, 257801), (142, 152502), (213, 101668), (284, 76251), (426, 50834), (497, 43572), (852, 25417), (994, 21786), (1491, 14524), (1988, 10893), (2982, 7262), (3631, 5964)]