27720403179

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{1031}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 43570544640

約数和(自身を除く): 15850141461

約数列:

[1, 3, 7, 21, 61, 139, 151, 183, 417, 427, 453, 973, 1031, 1057, 1281, 2919, 3093, 3171, 7217, 8479, 9211, 20989, 21651, 25437, 27633, 59353, 62891, 62967, 64477, 143309, 146923, 155681, 178059, 188673, 193431, 429927, 440237, 440769, 467043, 1003163, 1089767, 1280329, 1320711, 3009489, 3269301, 3840987, 8741849, 8962303, 9496541, 21639659, 26225547, 26886909, 28489623, 61192943, 64918977, 66475787, 151477613, 183578829, 199427361, 454432839, 1320019199, 3960057597, 9240134393, 27720403179]

約数ペア:

[(1, 27720403179), (3, 9240134393), (7, 3960057597), (21, 1320019199), (61, 454432839), (139, 199427361), (151, 183578829), (183, 151477613), (417, 66475787), (427, 64918977), (453, 61192943), (973, 28489623), (1031, 26886909), (1057, 26225547), (1281, 21639659), (2919, 9496541), (3093, 8962303), (3171, 8741849), (7217, 3840987), (8479, 3269301), (9211, 3009489), (20989, 1320711), (21651, 1280329), (25437, 1089767), (27633, 1003163), (59353, 467043), (62891, 440769), (62967, 440237), (64477, 429927), (143309, 193431), (146923, 188673), (155681, 178059)]