211848735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 397522944

約数和(自身を除く): 185674209

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 157, 181, 213, 355, 471, 497, 543, 785, 905, 1065, 1099, 1267, 1491, 2355, 2485, 2715, 3297, 3801, 5495, 6335, 7455, 11147, 12851, 16485, 19005, 28417, 33441, 38553, 55735, 64255, 78029, 85251, 89957, 142085, 167205, 192765, 198919, 234087, 269871, 390145, 426255, 449785, 596757, 994595, 1170435, 1349355, 2017607, 2983785, 6052821, 10088035, 14123249, 30264105, 42369747, 70616245, 211848735]

約数ペア:

[(1, 211848735), (3, 70616245), (5, 42369747), (7, 30264105), (15, 14123249), (21, 10088035), (35, 6052821), (71, 2983785), (105, 2017607), (157, 1349355), (181, 1170435), (213, 994595), (355, 596757), (471, 449785), (497, 426255), (543, 390145), (785, 269871), (905, 234087), (1065, 198919), (1099, 192765), (1267, 167205), (1491, 142085), (2355, 89957), (2485, 85251), (2715, 78029), (3297, 64255), (3801, 55735), (5495, 38553), (6335, 33441), (7455, 28417), (11147, 19005), (12851, 16485)]