90389409

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{409}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 136106880

約数和(自身を除く): 45717471

約数列:

[1, 3, 11, 33, 37, 111, 181, 407, 409, 543, 1221, 1227, 1991, 4499, 5973, 6697, 13497, 15133, 20091, 45399, 73667, 74029, 166463, 221001, 222087, 499389, 814319, 2442957, 2739073, 8217219, 30129803, 90389409]

約数ペア:

[(1, 90389409), (3, 30129803), (11, 8217219), (33, 2739073), (37, 2442957), (111, 814319), (181, 499389), (407, 222087), (409, 221001), (543, 166463), (1221, 74029), (1227, 73667), (1991, 45399), (4499, 20091), (5973, 15133), (6697, 13497)]