21167970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{839}}^1$

素因数の和:907

約数の個数: 48

約数和(自身を含む): 52678080

約数和(自身を除く): 31510110

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 839, 841, 870, 1678, 1682, 2517, 2523, 4195, 4205, 5034, 5046, 8390, 8410, 12585, 12615, 24331, 25170, 25230, 48662, 72993, 121655, 145986, 243310, 364965, 705599, 729930, 1411198, 2116797, 3527995, 4233594, 7055990, 10583985, 21167970]

約数ペア:

[(1, 21167970), (2, 10583985), (3, 7055990), (5, 4233594), (6, 3527995), (10, 2116797), (15, 1411198), (29, 729930), (30, 705599), (58, 364965), (87, 243310), (145, 145986), (174, 121655), (290, 72993), (435, 48662), (839, 25230), (841, 25170), (870, 24331), (1678, 12615), (1682, 12585), (2517, 8410), (2523, 8390), (4195, 5046), (4205, 5034)]