20217961816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{991}}^1\times {\mathrm{196169}}^1$

素因数の和:197179

約数の個数: 32

約数和(自身を含む): 40866134400

約数和(自身を除く): 20648172584

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 991, 1982, 3964, 7928, 12883, 25766, 51532, 103064, 196169, 392338, 784676, 1569352, 2550197, 5100394, 10200788, 20401576, 194403479, 388806958, 777613916, 1555227832, 2527245227, 5054490454, 10108980908, 20217961816]

約数ペア:

[(1, 20217961816), (2, 10108980908), (4, 5054490454), (8, 2527245227), (13, 1555227832), (26, 777613916), (52, 388806958), (104, 194403479), (991, 20401576), (1982, 10200788), (3964, 5100394), (7928, 2550197), (12883, 1569352), (25766, 784676), (51532, 392338), (103064, 196169)]