18991758

素因数分解:

$2^1\times 3^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 38937600

約数和(自身を除く): 19945842

約数列:

[1, 2, 3, 6, 79, 103, 158, 206, 237, 309, 389, 474, 618, 778, 1167, 2334, 8137, 16274, 24411, 30731, 40067, 48822, 61462, 80134, 92193, 120201, 184386, 240402, 3165293, 6330586, 9495879, 18991758]

約数ペア:

[(1, 18991758), (2, 9495879), (3, 6330586), (6, 3165293), (79, 240402), (103, 184386), (158, 120201), (206, 92193), (237, 80134), (309, 61462), (389, 48822), (474, 40067), (618, 30731), (778, 24411), (1167, 16274), (2334, 8137)]