21979300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1847}}^1$

素因数の和:1885

約数の個数: 72

約数和(自身を含む): 57746304

約数和(自身を除く): 35767004

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 50, 68, 70, 85, 100, 119, 140, 170, 175, 238, 340, 350, 425, 476, 595, 700, 850, 1190, 1700, 1847, 2380, 2975, 3694, 5950, 7388, 9235, 11900, 12929, 18470, 25858, 31399, 36940, 46175, 51716, 62798, 64645, 92350, 125596, 129290, 156995, 184700, 219793, 258580, 313990, 323225, 439586, 627980, 646450, 784975, 879172, 1098965, 1292900, 1569950, 2197930, 3139900, 4395860, 5494825, 10989650, 21979300]

約数ペア:

[(1, 21979300), (2, 10989650), (4, 5494825), (5, 4395860), (7, 3139900), (10, 2197930), (14, 1569950), (17, 1292900), (20, 1098965), (25, 879172), (28, 784975), (34, 646450), (35, 627980), (50, 439586), (68, 323225), (70, 313990), (85, 258580), (100, 219793), (119, 184700), (140, 156995), (170, 129290), (175, 125596), (238, 92350), (340, 64645), (350, 62798), (425, 51716), (476, 46175), (595, 36940), (700, 31399), (850, 25858), (1190, 18470), (1700, 12929), (1847, 11900), (2380, 9235), (2975, 7388), (3694, 5950)]