21462220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 52553088

約数和(自身を除く): 31090868

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 37, 46, 52, 65, 74, 92, 97, 115, 130, 148, 185, 194, 230, 260, 299, 370, 388, 460, 481, 485, 598, 740, 851, 962, 970, 1196, 1261, 1495, 1702, 1924, 1940, 2231, 2405, 2522, 2990, 3404, 3589, 4255, 4462, 4810, 5044, 5980, 6305, 7178, 8510, 8924, 9620, 11063, 11155, 12610, 14356, 17020, 17945, 22126, 22310, 25220, 29003, 35890, 44252, 44620, 46657, 55315, 58006, 71780, 82547, 93314, 110630, 116012, 145015, 165094, 186628, 221260, 233285, 290030, 330188, 412735, 466570, 580060, 825470, 933140, 1073111, 1650940, 2146222, 4292444, 5365555, 10731110, 21462220]

約数ペア:

[(1, 21462220), (2, 10731110), (4, 5365555), (5, 4292444), (10, 2146222), (13, 1650940), (20, 1073111), (23, 933140), (26, 825470), (37, 580060), (46, 466570), (52, 412735), (65, 330188), (74, 290030), (92, 233285), (97, 221260), (115, 186628), (130, 165094), (148, 145015), (185, 116012), (194, 110630), (230, 93314), (260, 82547), (299, 71780), (370, 58006), (388, 55315), (460, 46657), (481, 44620), (485, 44252), (598, 35890), (740, 29003), (851, 25220), (962, 22310), (970, 22126), (1196, 17945), (1261, 17020), (1495, 14356), (1702, 12610), (1924, 11155), (1940, 11063), (2231, 9620), (2405, 8924), (2522, 8510), (2990, 7178), (3404, 6305), (3589, 5980), (4255, 5044), (4462, 4810)]