21301360

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4513}}^1$

素因数の和:4585

約数の個数: 40

約数和(自身を含む): 50376240

約数和(自身を除く): 29074880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4513, 4720, 9026, 18052, 22565, 36104, 45130, 72208, 90260, 180520, 266267, 361040, 532534, 1065068, 1331335, 2130136, 2662670, 4260272, 5325340, 10650680, 21301360]

約数ペア:

[(1, 21301360), (2, 10650680), (4, 5325340), (5, 4260272), (8, 2662670), (10, 2130136), (16, 1331335), (20, 1065068), (40, 532534), (59, 361040), (80, 266267), (118, 180520), (236, 90260), (295, 72208), (472, 45130), (590, 36104), (944, 22565), (1180, 18052), (2360, 9026), (4513, 4720)]