21899940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{953}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 61544448

約数和(自身を除く): 39644508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 383, 766, 953, 1149, 1532, 1906, 1915, 2298, 2859, 3812, 3830, 4596, 4765, 5718, 5745, 7660, 9530, 11436, 11490, 14295, 19060, 22980, 28590, 57180, 364999, 729998, 1094997, 1459996, 1824995, 2189994, 3649990, 4379988, 5474985, 7299980, 10949970, 21899940]

約数ペア:

[(1, 21899940), (2, 10949970), (3, 7299980), (4, 5474985), (5, 4379988), (6, 3649990), (10, 2189994), (12, 1824995), (15, 1459996), (20, 1094997), (30, 729998), (60, 364999), (383, 57180), (766, 28590), (953, 22980), (1149, 19060), (1532, 14295), (1906, 11490), (1915, 11436), (2298, 9530), (2859, 7660), (3812, 5745), (3830, 5718), (4596, 4765)]