21681704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6659}}^1$

素因数の和:6713

約数の個数: 32

約数和(自身を含む): 45554400

約数和(自身を除く): 23872696

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6659, 13318, 26636, 53272, 73249, 146498, 246383, 292996, 492766, 585992, 985532, 1971064, 2710213, 5420426, 10840852, 21681704]

約数ペア:

[(1, 21681704), (2, 10840852), (4, 5420426), (8, 2710213), (11, 1971064), (22, 985532), (37, 585992), (44, 492766), (74, 292996), (88, 246383), (148, 146498), (296, 73249), (407, 53272), (814, 26636), (1628, 13318), (3256, 6659)]