20973524

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1056

約数の個数: 48

約数和(自身を含む): 44330496

約数和(自身を除く): 23356972

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 991, 1628, 1924, 1982, 3964, 5291, 10582, 10901, 12883, 21164, 21802, 25766, 36667, 43604, 51532, 73334, 141713, 146668, 283426, 403337, 476671, 566852, 806674, 953342, 1613348, 1906684, 5243381, 10486762, 20973524]

約数ペア:

[(1, 20973524), (2, 10486762), (4, 5243381), (11, 1906684), (13, 1613348), (22, 953342), (26, 806674), (37, 566852), (44, 476671), (52, 403337), (74, 283426), (143, 146668), (148, 141713), (286, 73334), (407, 51532), (481, 43604), (572, 36667), (814, 25766), (962, 21802), (991, 21164), (1628, 12883), (1924, 10901), (1982, 10582), (3964, 5291)]