21273350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:502

約数の個数: 72

約数和(自身を含む): 48557160

約数和(自身を除く): 27283810

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 49, 50, 70, 95, 98, 133, 175, 190, 245, 266, 350, 457, 475, 490, 665, 914, 931, 950, 1225, 1330, 1862, 2285, 2450, 3199, 3325, 4570, 4655, 6398, 6650, 8683, 9310, 11425, 15995, 17366, 22393, 22850, 23275, 31990, 43415, 44786, 46550, 60781, 79975, 86830, 111965, 121562, 159950, 217075, 223930, 303905, 425467, 434150, 559825, 607810, 850934, 1119650, 1519525, 2127335, 3039050, 4254670, 10636675, 21273350]

約数ペア:

[(1, 21273350), (2, 10636675), (5, 4254670), (7, 3039050), (10, 2127335), (14, 1519525), (19, 1119650), (25, 850934), (35, 607810), (38, 559825), (49, 434150), (50, 425467), (70, 303905), (95, 223930), (98, 217075), (133, 159950), (175, 121562), (190, 111965), (245, 86830), (266, 79975), (350, 60781), (457, 46550), (475, 44786), (490, 43415), (665, 31990), (914, 23275), (931, 22850), (950, 22393), (1225, 17366), (1330, 15995), (1862, 11425), (2285, 9310), (2450, 8683), (3199, 6650), (3325, 6398), (4570, 4655)]