21692692

素因数分解:

$2^2\times 7^3\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 45001600

約数和(自身を除く): 23308908

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 163, 194, 196, 326, 343, 388, 652, 679, 686, 1141, 1358, 1372, 2282, 2716, 4564, 4753, 7987, 9506, 15811, 15974, 19012, 31622, 31948, 33271, 55909, 63244, 66542, 110677, 111818, 133084, 221354, 223636, 442708, 774739, 1549478, 3098956, 5423173, 10846346, 21692692]

約数ペア:

[(1, 21692692), (2, 10846346), (4, 5423173), (7, 3098956), (14, 1549478), (28, 774739), (49, 442708), (97, 223636), (98, 221354), (163, 133084), (194, 111818), (196, 110677), (326, 66542), (343, 63244), (388, 55909), (652, 33271), (679, 31948), (686, 31622), (1141, 19012), (1358, 15974), (1372, 15811), (2282, 9506), (2716, 7987), (4564, 4753)]