20936421604

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{617}}^1\times {\mathrm{71287}}^1$

素因数の和:71932

約数の個数: 48

約数和(自身を含む): 44408431872

約数和(自身を除く): 23472010268

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 617, 1234, 2468, 4319, 8638, 10489, 17276, 20978, 41956, 71287, 73423, 142574, 146846, 285148, 293692, 499009, 998018, 1211879, 1996036, 2423758, 4847516, 8483153, 16966306, 33932612, 43984079, 87968158, 175936316, 307888553, 615777106, 747729343, 1231554212, 1495458686, 2990917372, 5234105401, 10468210802, 20936421604]

約数ペア:

[(1, 20936421604), (2, 10468210802), (4, 5234105401), (7, 2990917372), (14, 1495458686), (17, 1231554212), (28, 747729343), (34, 615777106), (68, 307888553), (119, 175936316), (238, 87968158), (476, 43984079), (617, 33932612), (1234, 16966306), (2468, 8483153), (4319, 4847516), (8638, 2423758), (10489, 1996036), (17276, 1211879), (20978, 998018), (41956, 499009), (71287, 293692), (73423, 285148), (142574, 146846)]