18007306988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{28211}}^1$

素因数の和:28478

約数の個数: 48

約数和(自身を含む): 34978366080

約数和(自身を除く): 16971059092

約数列:

[1, 2, 4, 11, 22, 44, 89, 163, 178, 326, 356, 652, 979, 1793, 1958, 3586, 3916, 7172, 14507, 28211, 29014, 56422, 58028, 112844, 159577, 310321, 319154, 620642, 638308, 1241284, 2510779, 4598393, 5021558, 9196786, 10043116, 18393572, 27618569, 50582323, 55237138, 101164646, 110474276, 202329292, 409256977, 818513954, 1637027908, 4501826747, 9003653494, 18007306988]

約数ペア:

[(1, 18007306988), (2, 9003653494), (4, 4501826747), (11, 1637027908), (22, 818513954), (44, 409256977), (89, 202329292), (163, 110474276), (178, 101164646), (326, 55237138), (356, 50582323), (652, 27618569), (979, 18393572), (1793, 10043116), (1958, 9196786), (3586, 5021558), (3916, 4598393), (7172, 2510779), (14507, 1241284), (28211, 638308), (29014, 620642), (56422, 319154), (58028, 310321), (112844, 159577)]