21237294

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8783}}^1$

素因数の和:8832

約数の個数: 32

約数和(自身を含む): 47222784

約数和(自身を除く): 25985490

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8783, 17566, 26349, 52698, 114179, 228358, 272273, 342537, 544546, 685074, 816819, 1633638, 3539549, 7079098, 10618647, 21237294]

約数ペア:

[(1, 21237294), (2, 10618647), (3, 7079098), (6, 3539549), (13, 1633638), (26, 816819), (31, 685074), (39, 544546), (62, 342537), (78, 272273), (93, 228358), (186, 114179), (403, 52698), (806, 26349), (1209, 17566), (2418, 8783)]