21976983

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 39237120

約数和(自身を除く): 17260137

約数列:

[1, 3, 7, 9, 21, 23, 29, 63, 69, 87, 161, 203, 207, 261, 483, 523, 609, 667, 1449, 1569, 1827, 2001, 3661, 4669, 4707, 6003, 10983, 12029, 14007, 15167, 32949, 36087, 42021, 45501, 84203, 106169, 108261, 136503, 252609, 318507, 348841, 757827, 955521, 1046523, 2441887, 3139569, 7325661, 21976983]

約数ペア:

[(1, 21976983), (3, 7325661), (7, 3139569), (9, 2441887), (21, 1046523), (23, 955521), (29, 757827), (63, 348841), (69, 318507), (87, 252609), (161, 136503), (203, 108261), (207, 106169), (261, 84203), (483, 45501), (523, 42021), (609, 36087), (667, 32949), (1449, 15167), (1569, 14007), (1827, 12029), (2001, 10983), (3661, 6003), (4669, 4707)]