28321671

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 45416448

約数和(自身を除く): 17094777

約数列:

[1, 3, 7, 21, 23, 69, 161, 191, 307, 483, 573, 921, 1337, 2149, 4011, 4393, 6447, 7061, 13179, 21183, 30751, 49427, 58637, 92253, 148281, 175911, 410459, 1231377, 1348651, 4045953, 9440557, 28321671]

約数ペア:

[(1, 28321671), (3, 9440557), (7, 4045953), (21, 1348651), (23, 1231377), (69, 410459), (161, 175911), (191, 148281), (307, 92253), (483, 58637), (573, 49427), (921, 30751), (1337, 21183), (2149, 13179), (4011, 7061), (4393, 6447)]