21190620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 65592576

約数和(自身を除く): 44401956

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 97, 110, 132, 165, 194, 220, 291, 330, 331, 388, 485, 582, 660, 662, 970, 993, 1067, 1164, 1324, 1455, 1655, 1940, 1986, 2134, 2910, 3201, 3310, 3641, 3972, 4268, 4965, 5335, 5820, 6402, 6620, 7282, 9930, 10670, 10923, 12804, 14564, 16005, 18205, 19860, 21340, 21846, 32010, 32107, 36410, 43692, 54615, 64020, 64214, 72820, 96321, 109230, 128428, 160535, 192642, 218460, 321070, 353177, 385284, 481605, 642140, 706354, 963210, 1059531, 1412708, 1765885, 1926420, 2119062, 3531770, 4238124, 5297655, 7063540, 10595310, 21190620]

約数ペア:

[(1, 21190620), (2, 10595310), (3, 7063540), (4, 5297655), (5, 4238124), (6, 3531770), (10, 2119062), (11, 1926420), (12, 1765885), (15, 1412708), (20, 1059531), (22, 963210), (30, 706354), (33, 642140), (44, 481605), (55, 385284), (60, 353177), (66, 321070), (97, 218460), (110, 192642), (132, 160535), (165, 128428), (194, 109230), (220, 96321), (291, 72820), (330, 64214), (331, 64020), (388, 54615), (485, 43692), (582, 36410), (660, 32107), (662, 32010), (970, 21846), (993, 21340), (1067, 19860), (1164, 18205), (1324, 16005), (1455, 14564), (1655, 12804), (1940, 10923), (1986, 10670), (2134, 9930), (2910, 7282), (3201, 6620), (3310, 6402), (3641, 5820), (3972, 5335), (4268, 4965)]