21891828

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1201}}^1$

素因数の和:1253

約数の個数: 72

約数和(自身を含む): 61388544

約数和(自身を除く): 39496716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 49, 62, 84, 93, 98, 124, 147, 186, 196, 217, 294, 372, 434, 588, 651, 868, 1201, 1302, 1519, 2402, 2604, 3038, 3603, 4557, 4804, 6076, 7206, 8407, 9114, 14412, 16814, 18228, 25221, 33628, 37231, 50442, 58849, 74462, 100884, 111693, 117698, 148924, 176547, 223386, 235396, 260617, 353094, 446772, 521234, 706188, 781851, 1042468, 1563702, 1824319, 3127404, 3648638, 5472957, 7297276, 10945914, 21891828]

約数ペア:

[(1, 21891828), (2, 10945914), (3, 7297276), (4, 5472957), (6, 3648638), (7, 3127404), (12, 1824319), (14, 1563702), (21, 1042468), (28, 781851), (31, 706188), (42, 521234), (49, 446772), (62, 353094), (84, 260617), (93, 235396), (98, 223386), (124, 176547), (147, 148924), (186, 117698), (196, 111693), (217, 100884), (294, 74462), (372, 58849), (434, 50442), (588, 37231), (651, 33628), (868, 25221), (1201, 18228), (1302, 16814), (1519, 14412), (2402, 9114), (2604, 8407), (3038, 7206), (3603, 6076), (4557, 4804)]