21912516

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 58094400

約数和(自身を除く): 36181884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 139, 151, 174, 261, 278, 302, 348, 417, 453, 522, 556, 604, 834, 906, 1044, 1251, 1359, 1668, 1812, 2502, 2718, 4031, 4379, 5004, 5436, 8062, 8758, 12093, 13137, 16124, 17516, 20989, 24186, 26274, 36279, 39411, 41978, 48372, 52548, 62967, 72558, 78822, 83956, 125934, 145116, 157644, 188901, 251868, 377802, 608681, 755604, 1217362, 1826043, 2434724, 3652086, 5478129, 7304172, 10956258, 21912516]

約数ペア:

[(1, 21912516), (2, 10956258), (3, 7304172), (4, 5478129), (6, 3652086), (9, 2434724), (12, 1826043), (18, 1217362), (29, 755604), (36, 608681), (58, 377802), (87, 251868), (116, 188901), (139, 157644), (151, 145116), (174, 125934), (261, 83956), (278, 78822), (302, 72558), (348, 62967), (417, 52548), (453, 48372), (522, 41978), (556, 39411), (604, 36279), (834, 26274), (906, 24186), (1044, 20989), (1251, 17516), (1359, 16124), (1668, 13137), (1812, 12093), (2502, 8758), (2718, 8062), (4031, 5436), (4379, 5004)]