21723340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14879}}^1$

素因数の和:14961

約数の個数: 24

約数和(自身を含む): 46247040

約数和(自身を除く): 24523700

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14879, 29758, 59516, 74395, 148790, 297580, 1086167, 2172334, 4344668, 5430835, 10861670, 21723340]

約数ペア:

[(1, 21723340), (2, 10861670), (4, 5430835), (5, 4344668), (10, 2172334), (20, 1086167), (73, 297580), (146, 148790), (292, 74395), (365, 59516), (730, 29758), (1460, 14879)]