21153456

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{2069}}^1$

素因数の和:2154

約数の個数: 60

約数和(自身を含む): 60063120

約数和(自身を除く): 38909664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2069, 2556, 3408, 4138, 5112, 6207, 8276, 10224, 12414, 16552, 18621, 24828, 33104, 37242, 49656, 74484, 99312, 146899, 148968, 293798, 297936, 440697, 587596, 881394, 1175192, 1322091, 1762788, 2350384, 2644182, 3525576, 5288364, 7051152, 10576728, 21153456]

約数ペア:

[(1, 21153456), (2, 10576728), (3, 7051152), (4, 5288364), (6, 3525576), (8, 2644182), (9, 2350384), (12, 1762788), (16, 1322091), (18, 1175192), (24, 881394), (36, 587596), (48, 440697), (71, 297936), (72, 293798), (142, 148968), (144, 146899), (213, 99312), (284, 74484), (426, 49656), (568, 37242), (639, 33104), (852, 24828), (1136, 18621), (1278, 16552), (1704, 12414), (2069, 10224), (2556, 8276), (3408, 6207), (4138, 5112)]