21548030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{569}}^1$

素因数の和:1124

約数の個数: 32

約数和(自身を含む): 44487360

約数和(自身を除く): 22939330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 541, 569, 1082, 1138, 2705, 2845, 3787, 3983, 5410, 5690, 7574, 7966, 18935, 19915, 37870, 39830, 307829, 615658, 1539145, 2154803, 3078290, 4309606, 10774015, 21548030]

約数ペア:

[(1, 21548030), (2, 10774015), (5, 4309606), (7, 3078290), (10, 2154803), (14, 1539145), (35, 615658), (70, 307829), (541, 39830), (569, 37870), (1082, 19915), (1138, 18935), (2705, 7966), (2845, 7574), (3787, 5690), (3983, 5410)]