19914648

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 38146152

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 29, 31, 39, 52, 58, 62, 71, 78, 87, 93, 104, 116, 124, 142, 156, 174, 186, 213, 232, 248, 284, 312, 348, 372, 377, 403, 426, 568, 696, 744, 754, 806, 852, 899, 923, 1131, 1209, 1508, 1612, 1704, 1798, 1846, 2059, 2201, 2262, 2418, 2697, 2769, 3016, 3224, 3596, 3692, 4118, 4402, 4524, 4836, 5394, 5538, 6177, 6603, 7192, 7384, 8236, 8804, 9048, 9672, 10788, 11076, 11687, 12354, 13206, 16472, 17608, 21576, 22152, 23374, 24708, 26412, 26767, 28613, 35061, 46748, 49416, 52824, 53534, 57226, 63829, 70122, 80301, 85839, 93496, 107068, 114452, 127658, 140244, 160602, 171678, 191487, 214136, 228904, 255316, 280488, 321204, 343356, 382974, 510632, 642408, 686712, 765948, 829777, 1531896, 1659554, 2489331, 3319108, 4978662, 6638216, 9957324, 19914648]

約数ペア:

[(1, 19914648), (2, 9957324), (3, 6638216), (4, 4978662), (6, 3319108), (8, 2489331), (12, 1659554), (13, 1531896), (24, 829777), (26, 765948), (29, 686712), (31, 642408), (39, 510632), (52, 382974), (58, 343356), (62, 321204), (71, 280488), (78, 255316), (87, 228904), (93, 214136), (104, 191487), (116, 171678), (124, 160602), (142, 140244), (156, 127658), (174, 114452), (186, 107068), (213, 93496), (232, 85839), (248, 80301), (284, 70122), (312, 63829), (348, 57226), (372, 53534), (377, 52824), (403, 49416), (426, 46748), (568, 35061), (696, 28613), (744, 26767), (754, 26412), (806, 24708), (852, 23374), (899, 22152), (923, 21576), (1131, 17608), (1209, 16472), (1508, 13206), (1612, 12354), (1704, 11687), (1798, 11076), (1846, 10788), (2059, 9672), (2201, 9048), (2262, 8804), (2418, 8236), (2697, 7384), (2769, 7192), (3016, 6603), (3224, 6177), (3596, 5538), (3692, 5394), (4118, 4836), (4402, 4524)]