21118812806

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{61363}}^1$

素因数の和:61477

約数の個数: 64

約数和(自身を含む): 40906715136

約数和(自身を除く): 19787902330

約数列:

[1, 2, 7, 13, 14, 26, 31, 61, 62, 91, 122, 182, 217, 403, 427, 434, 793, 806, 854, 1586, 1891, 2821, 3782, 5551, 5642, 11102, 13237, 24583, 26474, 49166, 61363, 122726, 172081, 344162, 429541, 797719, 859082, 1595438, 1902253, 3743143, 3804506, 5584033, 7486286, 11168066, 13315771, 24729289, 26202001, 26631542, 48660859, 49458578, 52404002, 97321718, 116037433, 173105023, 232074866, 340626013, 346210046, 681252026, 812262031, 1508486629, 1624524062, 3016973258, 10559406403, 21118812806]

約数ペア:

[(1, 21118812806), (2, 10559406403), (7, 3016973258), (13, 1624524062), (14, 1508486629), (26, 812262031), (31, 681252026), (61, 346210046), (62, 340626013), (91, 232074866), (122, 173105023), (182, 116037433), (217, 97321718), (403, 52404002), (427, 49458578), (434, 48660859), (793, 26631542), (806, 26202001), (854, 24729289), (1586, 13315771), (1891, 11168066), (2821, 7486286), (3782, 5584033), (5551, 3804506), (5642, 3743143), (11102, 1902253), (13237, 1595438), (24583, 859082), (26474, 797719), (49166, 429541), (61363, 344162), (122726, 172081)]