21309706

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 36640512

約数和(自身を除く): 15330806

約数列:

[1, 2, 11, 22, 37, 47, 74, 94, 407, 517, 557, 814, 1034, 1114, 1739, 3478, 6127, 12254, 19129, 20609, 26179, 38258, 41218, 52358, 226699, 287969, 453398, 575938, 968623, 1937246, 10654853, 21309706]

約数ペア:

[(1, 21309706), (2, 10654853), (11, 1937246), (22, 968623), (37, 575938), (47, 453398), (74, 287969), (94, 226699), (407, 52358), (517, 41218), (557, 38258), (814, 26179), (1034, 20609), (1114, 19129), (1739, 12254), (3478, 6127)]