20987952

素因数分解:

$2^4\times 3^1\times {\mathrm{59}}^1\times {\mathrm{7411}}^1$

素因数の和:7481

約数の個数: 40

約数和(自身を含む): 55145280

約数和(自身を除く): 34157328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 59, 118, 177, 236, 354, 472, 708, 944, 1416, 2832, 7411, 14822, 22233, 29644, 44466, 59288, 88932, 118576, 177864, 355728, 437249, 874498, 1311747, 1748996, 2623494, 3497992, 5246988, 6995984, 10493976, 20987952]

約数ペア:

[(1, 20987952), (2, 10493976), (3, 6995984), (4, 5246988), (6, 3497992), (8, 2623494), (12, 1748996), (16, 1311747), (24, 874498), (48, 437249), (59, 355728), (118, 177864), (177, 118576), (236, 88932), (354, 59288), (472, 44466), (708, 29644), (944, 22233), (1416, 14822), (2832, 7411)]