20814444

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{547}}^1$

素因数の和:715

約数の個数: 72

約数和(自身を含む): 60639488

約数和(自身を除く): 39825044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 151, 252, 302, 453, 547, 604, 906, 1057, 1094, 1359, 1641, 1812, 2114, 2188, 2718, 3171, 3282, 3829, 4228, 4923, 5436, 6342, 6564, 7658, 9513, 9846, 11487, 12684, 15316, 19026, 19692, 22974, 34461, 38052, 45948, 68922, 82597, 137844, 165194, 247791, 330388, 495582, 578179, 743373, 991164, 1156358, 1486746, 1734537, 2312716, 2973492, 3469074, 5203611, 6938148, 10407222, 20814444]

約数ペア:

[(1, 20814444), (2, 10407222), (3, 6938148), (4, 5203611), (6, 3469074), (7, 2973492), (9, 2312716), (12, 1734537), (14, 1486746), (18, 1156358), (21, 991164), (28, 743373), (36, 578179), (42, 495582), (63, 330388), (84, 247791), (126, 165194), (151, 137844), (252, 82597), (302, 68922), (453, 45948), (547, 38052), (604, 34461), (906, 22974), (1057, 19692), (1094, 19026), (1359, 15316), (1641, 12684), (1812, 11487), (2114, 9846), (2188, 9513), (2718, 7658), (3171, 6564), (3282, 6342), (3829, 5436), (4228, 4923)]