20347742961

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{856711}}^1$

素因数の和:856766

約数の個数: 48

約数和(自身を含む): 37421180160

約数和(自身を除く): 17073437199

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 819, 1131, 1827, 2639, 3393, 7917, 23751, 856711, 2570133, 5996977, 7710399, 11137243, 17990931, 24844619, 33411729, 53972793, 74533857, 77960701, 100235187, 173912333, 223601571, 233882103, 322980047, 521736999, 701646309, 968940141, 1565210997, 2260860329, 2906820423, 6782580987, 20347742961]

約数ペア:

[(1, 20347742961), (3, 6782580987), (7, 2906820423), (9, 2260860329), (13, 1565210997), (21, 968940141), (29, 701646309), (39, 521736999), (63, 322980047), (87, 233882103), (91, 223601571), (117, 173912333), (203, 100235187), (261, 77960701), (273, 74533857), (377, 53972793), (609, 33411729), (819, 24844619), (1131, 17990931), (1827, 11137243), (2639, 7710399), (3393, 5996977), (7917, 2570133), (23751, 856711)]