21000953350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{53759}}^1$

素因数の和:54385

約数の個数: 48

約数和(自身を含む): 42137303040

約数和(自身を除く): 21136349690

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 601, 650, 1202, 3005, 6010, 7813, 15025, 15626, 30050, 39065, 53759, 78130, 107518, 195325, 268795, 390650, 537590, 698867, 1343975, 1397734, 2687950, 3494335, 6988670, 17471675, 32309159, 34943350, 64618318, 161545795, 323091590, 420019067, 807728975, 840038134, 1615457950, 2100095335, 4200190670, 10500476675, 21000953350]

約数ペア:

[(1, 21000953350), (2, 10500476675), (5, 4200190670), (10, 2100095335), (13, 1615457950), (25, 840038134), (26, 807728975), (50, 420019067), (65, 323091590), (130, 161545795), (325, 64618318), (601, 34943350), (650, 32309159), (1202, 17471675), (3005, 6988670), (6010, 3494335), (7813, 2687950), (15025, 1397734), (15626, 1343975), (30050, 698867), (39065, 537590), (53759, 390650), (78130, 268795), (107518, 195325)]