20997704

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28843}}^1$

素因数の和:28869

約数の個数: 32

約数和(自身を含む): 48457920

約数和(自身を除く): 27460216

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28843, 57686, 115372, 201901, 230744, 374959, 403802, 749918, 807604, 1499836, 1615208, 2624713, 2999672, 5249426, 10498852, 20997704]

約数ペア:

[(1, 20997704), (2, 10498852), (4, 5249426), (7, 2999672), (8, 2624713), (13, 1615208), (14, 1499836), (26, 807604), (28, 749918), (52, 403802), (56, 374959), (91, 230744), (104, 201901), (182, 115372), (364, 57686), (728, 28843)]