21202140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11399}}^1$

素因数の和:11442

約数の個数: 48

約数和(自身を含む): 61286400

約数和(自身を除く): 40084260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11399, 22798, 34197, 45596, 56995, 68394, 113990, 136788, 170985, 227980, 341970, 353369, 683940, 706738, 1060107, 1413476, 1766845, 2120214, 3533690, 4240428, 5300535, 7067380, 10601070, 21202140]

約数ペア:

[(1, 21202140), (2, 10601070), (3, 7067380), (4, 5300535), (5, 4240428), (6, 3533690), (10, 2120214), (12, 1766845), (15, 1413476), (20, 1060107), (30, 706738), (31, 683940), (60, 353369), (62, 341970), (93, 227980), (124, 170985), (155, 136788), (186, 113990), (310, 68394), (372, 56995), (465, 45596), (620, 34197), (930, 22798), (1860, 11399)]