20385354

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 45926496

約数和(自身を除く): 25541142

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 121, 129, 242, 258, 363, 473, 653, 726, 946, 1306, 1419, 1959, 2838, 3918, 5203, 7183, 10406, 14366, 15609, 21549, 28079, 31218, 43098, 56158, 79013, 84237, 158026, 168474, 237039, 308869, 474078, 617738, 926607, 1853214, 3397559, 6795118, 10192677, 20385354]

約数ペア:

[(1, 20385354), (2, 10192677), (3, 6795118), (6, 3397559), (11, 1853214), (22, 926607), (33, 617738), (43, 474078), (66, 308869), (86, 237039), (121, 168474), (129, 158026), (242, 84237), (258, 79013), (363, 56158), (473, 43098), (653, 31218), (726, 28079), (946, 21549), (1306, 15609), (1419, 14366), (1959, 10406), (2838, 7183), (3918, 5203)]