21842180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{461}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 26590204

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 103, 115, 206, 230, 412, 460, 461, 515, 922, 1030, 1844, 2060, 2305, 2369, 4610, 4738, 9220, 9476, 10603, 11845, 21206, 23690, 42412, 47380, 47483, 53015, 94966, 106030, 189932, 212060, 237415, 474830, 949660, 1092109, 2184218, 4368436, 5460545, 10921090, 21842180]

約数ペア:

[(1, 21842180), (2, 10921090), (4, 5460545), (5, 4368436), (10, 2184218), (20, 1092109), (23, 949660), (46, 474830), (92, 237415), (103, 212060), (115, 189932), (206, 106030), (230, 94966), (412, 53015), (460, 47483), (461, 47380), (515, 42412), (922, 23690), (1030, 21206), (1844, 11845), (2060, 10603), (2305, 9476), (2369, 9220), (4610, 4738)]