20913584432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{971}}^1\times {\mathrm{103549}}^1$

素因数の和:104541

約数の個数: 40

約数和(自身を含む): 43682360400

約数和(自身を除く): 22768775968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 971, 1942, 3884, 7768, 12623, 15536, 25246, 50492, 100984, 103549, 201968, 207098, 414196, 828392, 1346137, 1656784, 2692274, 5384548, 10769096, 21538192, 100546079, 201092158, 402184316, 804368632, 1307099027, 1608737264, 2614198054, 5228396108, 10456792216, 20913584432]

約数ペア:

[(1, 20913584432), (2, 10456792216), (4, 5228396108), (8, 2614198054), (13, 1608737264), (16, 1307099027), (26, 804368632), (52, 402184316), (104, 201092158), (208, 100546079), (971, 21538192), (1942, 10769096), (3884, 5384548), (7768, 2692274), (12623, 1656784), (15536, 1346137), (25246, 828392), (50492, 414196), (100984, 207098), (103549, 201968)]