216427428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{19973}}^1$

素因数の和:20033

約数の個数: 72

約数和(自身を含む): 639807168

約数和(自身を除く): 423379740

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2709, 3612, 5418, 10836, 19973, 39946, 59919, 79892, 119838, 139811, 179757, 239676, 279622, 359514, 419433, 559244, 719028, 838866, 858839, 1258299, 1677732, 1717678, 2516598, 2576517, 3435356, 5033196, 5153034, 6011873, 7729551, 10306068, 12023746, 15459102, 18035619, 24047492, 30918204, 36071238, 54106857, 72142476, 108213714, 216427428]

約数ペア:

[(1, 216427428), (2, 108213714), (3, 72142476), (4, 54106857), (6, 36071238), (7, 30918204), (9, 24047492), (12, 18035619), (14, 15459102), (18, 12023746), (21, 10306068), (28, 7729551), (36, 6011873), (42, 5153034), (43, 5033196), (63, 3435356), (84, 2576517), (86, 2516598), (126, 1717678), (129, 1677732), (172, 1258299), (252, 858839), (258, 838866), (301, 719028), (387, 559244), (516, 419433), (602, 359514), (774, 279622), (903, 239676), (1204, 179757), (1548, 139811), (1806, 119838), (2709, 79892), (3612, 59919), (5418, 39946), (10836, 19973)]