21983950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 43769520

約数和(自身を除く): 21785570

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 73, 95, 146, 190, 317, 365, 475, 634, 730, 950, 1387, 1585, 1825, 2774, 3170, 3650, 6023, 6935, 7925, 12046, 13870, 15850, 23141, 30115, 34675, 46282, 60230, 69350, 115705, 150575, 231410, 301150, 439679, 578525, 879358, 1157050, 2198395, 4396790, 10991975, 21983950]

約数ペア:

[(1, 21983950), (2, 10991975), (5, 4396790), (10, 2198395), (19, 1157050), (25, 879358), (38, 578525), (50, 439679), (73, 301150), (95, 231410), (146, 150575), (190, 115705), (317, 69350), (365, 60230), (475, 46282), (634, 34675), (730, 30115), (950, 23141), (1387, 15850), (1585, 13870), (1825, 12046), (2774, 7925), (3170, 6935), (3650, 6023)]