21930390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{243671}}^1$

素因数の和:243684

約数の個数: 24

約数和(自身を含む): 57019248

約数和(自身を除く): 35088858

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 243671, 487342, 731013, 1218355, 1462026, 2193039, 2436710, 3655065, 4386078, 7310130, 10965195, 21930390]

約数ペア:

[(1, 21930390), (2, 10965195), (3, 7310130), (5, 4386078), (6, 3655065), (9, 2436710), (10, 2193039), (15, 1462026), (18, 1218355), (30, 731013), (45, 487342), (90, 243671)]