21303690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:607

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 32817270

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 47, 58, 87, 94, 141, 145, 174, 235, 282, 290, 435, 470, 521, 705, 870, 1042, 1363, 1410, 1563, 2605, 2726, 3126, 4089, 5210, 6815, 7815, 8178, 13630, 15109, 15630, 20445, 24487, 30218, 40890, 45327, 48974, 73461, 75545, 90654, 122435, 146922, 151090, 226635, 244870, 367305, 453270, 710123, 734610, 1420246, 2130369, 3550615, 4260738, 7101230, 10651845, 21303690]

約数ペア:

[(1, 21303690), (2, 10651845), (3, 7101230), (5, 4260738), (6, 3550615), (10, 2130369), (15, 1420246), (29, 734610), (30, 710123), (47, 453270), (58, 367305), (87, 244870), (94, 226635), (141, 151090), (145, 146922), (174, 122435), (235, 90654), (282, 75545), (290, 73461), (435, 48974), (470, 45327), (521, 40890), (705, 30218), (870, 24487), (1042, 20445), (1363, 15630), (1410, 15109), (1563, 13630), (2605, 8178), (2726, 7815), (3126, 6815), (4089, 5210)]