231991578

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20233}}^1$

素因数の和:20268

約数の個数: 72

約数和(自身を含む): 629722548

約数和(自身を除く): 397730970

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1911, 3822, 5733, 11466, 20233, 40466, 60699, 121398, 141631, 182097, 263029, 283262, 364194, 424893, 526058, 789087, 849786, 991417, 1274679, 1578174, 1841203, 1982834, 2367261, 2549358, 2974251, 3682406, 4734522, 5523609, 5948502, 8922753, 11047218, 12888421, 16570827, 17845506, 25776842, 33141654, 38665263, 77330526, 115995789, 231991578]

約数ペア:

[(1, 231991578), (2, 115995789), (3, 77330526), (6, 38665263), (7, 33141654), (9, 25776842), (13, 17845506), (14, 16570827), (18, 12888421), (21, 11047218), (26, 8922753), (39, 5948502), (42, 5523609), (49, 4734522), (63, 3682406), (78, 2974251), (91, 2549358), (98, 2367261), (117, 1982834), (126, 1841203), (147, 1578174), (182, 1274679), (234, 991417), (273, 849786), (294, 789087), (441, 526058), (546, 424893), (637, 364194), (819, 283262), (882, 263029), (1274, 182097), (1638, 141631), (1911, 121398), (3822, 60699), (5733, 40466), (11466, 20233)]