17999716

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 19739804

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 89, 124, 178, 217, 233, 356, 434, 466, 623, 868, 932, 1246, 1631, 2492, 2759, 3262, 5518, 6524, 7223, 11036, 14446, 19313, 20737, 28892, 38626, 41474, 50561, 77252, 82948, 101122, 145159, 202244, 290318, 580636, 642847, 1285694, 2571388, 4499929, 8999858, 17999716]

約数ペア:

[(1, 17999716), (2, 8999858), (4, 4499929), (7, 2571388), (14, 1285694), (28, 642847), (31, 580636), (62, 290318), (89, 202244), (124, 145159), (178, 101122), (217, 82948), (233, 77252), (356, 50561), (434, 41474), (466, 38626), (623, 28892), (868, 20737), (932, 19313), (1246, 14446), (1631, 11036), (2492, 7223), (2759, 6524), (3262, 5518)]