21962860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1993}}^1$

素因数の和:2050

約数の個数: 48

約数和(自身を含む): 50248800

約数和(自身を除く): 28285940

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1993, 2204, 2755, 3986, 5510, 7972, 9965, 11020, 19930, 37867, 39860, 57797, 75734, 115594, 151468, 189335, 231188, 288985, 378670, 577970, 757340, 1098143, 1155940, 2196286, 4392572, 5490715, 10981430, 21962860]

約数ペア:

[(1, 21962860), (2, 10981430), (4, 5490715), (5, 4392572), (10, 2196286), (19, 1155940), (20, 1098143), (29, 757340), (38, 577970), (58, 378670), (76, 288985), (95, 231188), (116, 189335), (145, 151468), (190, 115594), (290, 75734), (380, 57797), (551, 39860), (580, 37867), (1102, 19930), (1993, 11020), (2204, 9965), (2755, 7972), (3986, 5510)]