20561928

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{953}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 54950400

約数和(自身を除く): 34388472

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 31, 58, 62, 87, 93, 116, 124, 174, 186, 232, 248, 348, 372, 696, 744, 899, 953, 1798, 1906, 2697, 2859, 3596, 3812, 5394, 5718, 7192, 7624, 10788, 11436, 21576, 22872, 27637, 29543, 55274, 59086, 82911, 88629, 110548, 118172, 165822, 177258, 221096, 236344, 331644, 354516, 663288, 709032, 856747, 1713494, 2570241, 3426988, 5140482, 6853976, 10280964, 20561928]

約数ペア:

[(1, 20561928), (2, 10280964), (3, 6853976), (4, 5140482), (6, 3426988), (8, 2570241), (12, 1713494), (24, 856747), (29, 709032), (31, 663288), (58, 354516), (62, 331644), (87, 236344), (93, 221096), (116, 177258), (124, 165822), (174, 118172), (186, 110548), (232, 88629), (248, 82911), (348, 59086), (372, 55274), (696, 29543), (744, 27637), (899, 22872), (953, 21576), (1798, 11436), (1906, 10788), (2697, 7624), (2859, 7192), (3596, 5718), (3812, 5394)]