21553470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3373}}^1$

素因数の和:3457

約数の個数: 48

約数和(自身を含む): 56845152

約数和(自身を除く): 35291682

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 3373, 6390, 6746, 10119, 16865, 20238, 30357, 33730, 50595, 60714, 101190, 151785, 239483, 303570, 478966, 718449, 1197415, 1436898, 2155347, 2394830, 3592245, 4310694, 7184490, 10776735, 21553470]

約数ペア:

[(1, 21553470), (2, 10776735), (3, 7184490), (5, 4310694), (6, 3592245), (9, 2394830), (10, 2155347), (15, 1436898), (18, 1197415), (30, 718449), (45, 478966), (71, 303570), (90, 239483), (142, 151785), (213, 101190), (355, 60714), (426, 50595), (639, 33730), (710, 30357), (1065, 20238), (1278, 16865), (2130, 10119), (3195, 6746), (3373, 6390)]