21029428

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5647}}^1$

素因数の和:5684

約数の個数: 36

約数和(自身を含む): 45071040

約数和(自身を除く): 24041612

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5647, 11294, 22588, 39529, 79058, 107293, 158116, 214586, 276703, 429172, 553406, 751051, 1106812, 1502102, 3004204, 5257357, 10514714, 21029428]

約数ペア:

[(1, 21029428), (2, 10514714), (4, 5257357), (7, 3004204), (14, 1502102), (19, 1106812), (28, 751051), (38, 553406), (49, 429172), (76, 276703), (98, 214586), (133, 158116), (196, 107293), (266, 79058), (532, 39529), (931, 22588), (1862, 11294), (3724, 5647)]