21394548

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1163}}^1$

素因数の和:1253

約数の個数: 72

約数和(自身を含む): 62707008

約数和(自身を除く): 41312460

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 73, 84, 126, 146, 219, 252, 292, 438, 511, 657, 876, 1022, 1163, 1314, 1533, 2044, 2326, 2628, 3066, 3489, 4599, 4652, 6132, 6978, 8141, 9198, 10467, 13956, 16282, 18396, 20934, 24423, 32564, 41868, 48846, 73269, 84899, 97692, 146538, 169798, 254697, 293076, 339596, 509394, 594293, 764091, 1018788, 1188586, 1528182, 1782879, 2377172, 3056364, 3565758, 5348637, 7131516, 10697274, 21394548]

約数ペア:

[(1, 21394548), (2, 10697274), (3, 7131516), (4, 5348637), (6, 3565758), (7, 3056364), (9, 2377172), (12, 1782879), (14, 1528182), (18, 1188586), (21, 1018788), (28, 764091), (36, 594293), (42, 509394), (63, 339596), (73, 293076), (84, 254697), (126, 169798), (146, 146538), (219, 97692), (252, 84899), (292, 73269), (438, 48846), (511, 41868), (657, 32564), (876, 24423), (1022, 20934), (1163, 18396), (1314, 16282), (1533, 13956), (2044, 10467), (2326, 9198), (2628, 8141), (3066, 6978), (3489, 6132), (4599, 4652)]