21301850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1367

約数の個数: 48

約数和(自身を含む): 44193600

約数和(自身を除く): 22891750

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 170, 190, 323, 425, 475, 646, 850, 950, 1319, 1615, 2638, 3230, 6595, 8075, 13190, 16150, 22423, 25061, 32975, 44846, 50122, 65950, 112115, 125305, 224230, 250610, 426037, 560575, 626525, 852074, 1121150, 1253050, 2130185, 4260370, 10650925, 21301850]

約数ペア:

[(1, 21301850), (2, 10650925), (5, 4260370), (10, 2130185), (17, 1253050), (19, 1121150), (25, 852074), (34, 626525), (38, 560575), (50, 426037), (85, 250610), (95, 224230), (170, 125305), (190, 112115), (323, 65950), (425, 50122), (475, 44846), (646, 32975), (850, 25061), (950, 22423), (1319, 16150), (1615, 13190), (2638, 8075), (3230, 6595)]