21423540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 62705664

約数和(自身を除く): 41282124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 71, 94, 107, 141, 142, 188, 213, 214, 235, 282, 284, 321, 355, 426, 428, 470, 535, 564, 642, 705, 710, 852, 940, 1065, 1070, 1284, 1410, 1420, 1605, 2130, 2140, 2820, 3210, 3337, 4260, 5029, 6420, 6674, 7597, 10011, 10058, 13348, 15087, 15194, 16685, 20022, 20116, 22791, 25145, 30174, 30388, 33370, 37985, 40044, 45582, 50055, 50290, 60348, 66740, 75435, 75970, 91164, 100110, 100580, 113955, 150870, 151940, 200220, 227910, 301740, 357059, 455820, 714118, 1071177, 1428236, 1785295, 2142354, 3570590, 4284708, 5355885, 7141180, 10711770, 21423540]

約数ペア:

[(1, 21423540), (2, 10711770), (3, 7141180), (4, 5355885), (5, 4284708), (6, 3570590), (10, 2142354), (12, 1785295), (15, 1428236), (20, 1071177), (30, 714118), (47, 455820), (60, 357059), (71, 301740), (94, 227910), (107, 200220), (141, 151940), (142, 150870), (188, 113955), (213, 100580), (214, 100110), (235, 91164), (282, 75970), (284, 75435), (321, 66740), (355, 60348), (426, 50290), (428, 50055), (470, 45582), (535, 40044), (564, 37985), (642, 33370), (705, 30388), (710, 30174), (852, 25145), (940, 22791), (1065, 20116), (1070, 20022), (1284, 16685), (1410, 15194), (1420, 15087), (1605, 13348), (2130, 10058), (2140, 10011), (2820, 7597), (3210, 6674), (3337, 6420), (4260, 5029)]