20512954917

素因数分解:

$3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{13709}}^1$

素因数の和:13777

約数の個数: 120

約数和(自身を含む): 39714305400

約数和(自身を除く): 19201350483

約数列:

[1, 3, 7, 9, 13, 21, 27, 29, 39, 49, 63, 81, 87, 91, 117, 147, 189, 203, 261, 273, 351, 377, 441, 567, 609, 637, 783, 819, 1053, 1131, 1323, 1421, 1827, 1911, 2349, 2457, 2639, 3393, 3969, 4263, 5481, 5733, 7371, 7917, 10179, 12789, 13709, 16443, 17199, 18473, 23751, 30537, 38367, 41127, 51597, 55419, 71253, 95963, 115101, 123381, 166257, 178217, 213759, 287889, 370143, 397561, 498771, 534651, 671741, 863667, 1110429, 1192683, 1247519, 1496313, 1603953, 2015223, 2591001, 2782927, 3578049, 3742557, 4811859, 5168293, 6045669, 7773003, 8348781, 8732633, 10734147, 11227671, 14435577, 15504879, 18137007, 19480489, 25046343, 26197899, 32202441, 33683013, 36178051, 46514637, 54411021, 58441467, 75139029, 78593697, 101049039, 108534153, 139543911, 175324401, 225417087, 235781091, 253246357, 325602459, 418631733, 525973203, 707343273, 759739071, 976807377, 1577919609, 2279217213, 2930422131, 6837651639, 20512954917]

約数ペア:

[(1, 20512954917), (3, 6837651639), (7, 2930422131), (9, 2279217213), (13, 1577919609), (21, 976807377), (27, 759739071), (29, 707343273), (39, 525973203), (49, 418631733), (63, 325602459), (81, 253246357), (87, 235781091), (91, 225417087), (117, 175324401), (147, 139543911), (189, 108534153), (203, 101049039), (261, 78593697), (273, 75139029), (351, 58441467), (377, 54411021), (441, 46514637), (567, 36178051), (609, 33683013), (637, 32202441), (783, 26197899), (819, 25046343), (1053, 19480489), (1131, 18137007), (1323, 15504879), (1421, 14435577), (1827, 11227671), (1911, 10734147), (2349, 8732633), (2457, 8348781), (2639, 7773003), (3393, 6045669), (3969, 5168293), (4263, 4811859), (5481, 3742557), (5733, 3578049), (7371, 2782927), (7917, 2591001), (10179, 2015223), (12789, 1603953), (13709, 1496313), (16443, 1247519), (17199, 1192683), (18473, 1110429), (23751, 863667), (30537, 671741), (38367, 534651), (41127, 498771), (51597, 397561), (55419, 370143), (71253, 287889), (95963, 213759), (115101, 178217), (123381, 166257)]