21479460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1321}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 60410112

約数和(自身を除く): 38930652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 271, 542, 813, 1084, 1321, 1355, 1626, 2642, 2710, 3252, 3963, 4065, 5284, 5420, 6605, 7926, 8130, 13210, 15852, 16260, 19815, 26420, 39630, 79260, 357991, 715982, 1073973, 1431964, 1789955, 2147946, 3579910, 4295892, 5369865, 7159820, 10739730, 21479460]

約数ペア:

[(1, 21479460), (2, 10739730), (3, 7159820), (4, 5369865), (5, 4295892), (6, 3579910), (10, 2147946), (12, 1789955), (15, 1431964), (20, 1073973), (30, 715982), (60, 357991), (271, 79260), (542, 39630), (813, 26420), (1084, 19815), (1321, 16260), (1355, 15852), (1626, 13210), (2642, 8130), (2710, 7926), (3252, 6605), (3963, 5420), (4065, 5284)]