19977622

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 35265600

約数和(自身を除く): 15287978

約数列:

[1, 2, 7, 14, 61, 122, 149, 157, 298, 314, 427, 854, 1043, 1099, 2086, 2198, 9089, 9577, 18178, 19154, 23393, 46786, 63623, 67039, 127246, 134078, 163751, 327502, 1426973, 2853946, 9988811, 19977622]

約数ペア:

[(1, 19977622), (2, 9988811), (7, 2853946), (14, 1426973), (61, 327502), (122, 163751), (149, 134078), (157, 127246), (298, 67039), (314, 63623), (427, 46786), (854, 23393), (1043, 19154), (1099, 18178), (2086, 9577), (2198, 9089)]