18990764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5987}}^1$

素因数の和:6065

約数の個数: 24

約数和(自身を含む): 36383088

約数和(自身を除く): 17392324

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 5987, 11974, 23948, 77831, 155662, 311324, 365207, 730414, 1460828, 4747691, 9495382, 18990764]

約数ペア:

[(1, 18990764), (2, 9495382), (4, 4747691), (13, 1460828), (26, 730414), (52, 365207), (61, 311324), (122, 155662), (244, 77831), (793, 23948), (1586, 11974), (3172, 5987)]