21231288

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{7561}}^1$

素因数の和:7589

約数の個数: 64

約数和(自身を含む): 63520800

約数和(自身を除く): 42289512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 234, 312, 351, 468, 702, 936, 1404, 2808, 7561, 15122, 22683, 30244, 45366, 60488, 68049, 90732, 98293, 136098, 181464, 196586, 204147, 272196, 294879, 393172, 408294, 544392, 589758, 786344, 816588, 884637, 1179516, 1633176, 1769274, 2359032, 2653911, 3538548, 5307822, 7077096, 10615644, 21231288]

約数ペア:

[(1, 21231288), (2, 10615644), (3, 7077096), (4, 5307822), (6, 3538548), (8, 2653911), (9, 2359032), (12, 1769274), (13, 1633176), (18, 1179516), (24, 884637), (26, 816588), (27, 786344), (36, 589758), (39, 544392), (52, 408294), (54, 393172), (72, 294879), (78, 272196), (104, 204147), (108, 196586), (117, 181464), (156, 136098), (216, 98293), (234, 90732), (312, 68049), (351, 60488), (468, 45366), (702, 30244), (936, 22683), (1404, 15122), (2808, 7561)]