21017156913

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{1571}}^1$

素因数の和:1816

約数の個数: 80

約数和(自身を含む): 33745130496

約数和(自身を除く): 12727973583

約数列:

[1, 3, 9, 23, 27, 43, 69, 81, 129, 167, 207, 387, 501, 621, 989, 1161, 1503, 1571, 1863, 2967, 3483, 3841, 4509, 4713, 7181, 8901, 11523, 13527, 14139, 21543, 26703, 34569, 36133, 42417, 64629, 67553, 80109, 103707, 108399, 127251, 165163, 193887, 202659, 262357, 311121, 325197, 495489, 581661, 607977, 787071, 975591, 1486467, 1553719, 1823931, 2361213, 2926773, 4459401, 4661157, 5471793, 6034211, 7083639, 11281351, 13378203, 13983471, 18102633, 21250917, 33844053, 41950413, 54307899, 101532159, 125851239, 162923697, 259471073, 304596477, 488771091, 778413219, 913789431, 2335239657, 7005718971, 21017156913]

約数ペア:

[(1, 21017156913), (3, 7005718971), (9, 2335239657), (23, 913789431), (27, 778413219), (43, 488771091), (69, 304596477), (81, 259471073), (129, 162923697), (167, 125851239), (207, 101532159), (387, 54307899), (501, 41950413), (621, 33844053), (989, 21250917), (1161, 18102633), (1503, 13983471), (1571, 13378203), (1863, 11281351), (2967, 7083639), (3483, 6034211), (3841, 5471793), (4509, 4661157), (4713, 4459401), (7181, 2926773), (8901, 2361213), (11523, 1823931), (13527, 1553719), (14139, 1486467), (21543, 975591), (26703, 787071), (34569, 607977), (36133, 581661), (42417, 495489), (64629, 325197), (67553, 311121), (80109, 262357), (103707, 202659), (108399, 193887), (127251, 165163)]