221487498

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{396931}}^1$

素因数の和:396970

約数の個数: 24

約数和(自身を含む): 495371136

約数和(自身を除く): 273883638

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 396931, 793862, 1190793, 2381586, 3572379, 7144758, 12304861, 24609722, 36914583, 73829166, 110743749, 221487498]

約数ペア:

[(1, 221487498), (2, 110743749), (3, 73829166), (6, 36914583), (9, 24609722), (18, 12304861), (31, 7144758), (62, 3572379), (93, 2381586), (186, 1190793), (279, 793862), (558, 396931)]