21249936

素因数分解:

$2^4\times 3^2\times {\mathrm{173}}^1\times {\mathrm{853}}^1$

素因数の和:1040

約数の個数: 60

約数和(自身を含む): 59884188

約数和(自身を除く): 38634252

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 173, 346, 519, 692, 853, 1038, 1384, 1557, 1706, 2076, 2559, 2768, 3114, 3412, 4152, 5118, 6228, 6824, 7677, 8304, 10236, 12456, 13648, 15354, 20472, 24912, 30708, 40944, 61416, 122832, 147569, 295138, 442707, 590276, 885414, 1180552, 1328121, 1770828, 2361104, 2656242, 3541656, 5312484, 7083312, 10624968, 21249936]

約数ペア:

[(1, 21249936), (2, 10624968), (3, 7083312), (4, 5312484), (6, 3541656), (8, 2656242), (9, 2361104), (12, 1770828), (16, 1328121), (18, 1180552), (24, 885414), (36, 590276), (48, 442707), (72, 295138), (144, 147569), (173, 122832), (346, 61416), (519, 40944), (692, 30708), (853, 24912), (1038, 20472), (1384, 15354), (1557, 13648), (1706, 12456), (2076, 10236), (2559, 8304), (2768, 7677), (3114, 6824), (3412, 6228), (4152, 5118)]