21088576

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 56

約数和(自身を含む): 43809920

約数和(自身を除く): 22721344

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 79, 86, 97, 158, 172, 194, 316, 344, 388, 632, 688, 776, 1264, 1376, 1552, 2528, 2752, 3104, 3397, 4171, 5056, 6208, 6794, 7663, 8342, 13588, 15326, 16684, 27176, 30652, 33368, 54352, 61304, 66736, 108704, 122608, 133472, 217408, 245216, 266944, 329509, 490432, 659018, 1318036, 2636072, 5272144, 10544288, 21088576]

約数ペア:

[(1, 21088576), (2, 10544288), (4, 5272144), (8, 2636072), (16, 1318036), (32, 659018), (43, 490432), (64, 329509), (79, 266944), (86, 245216), (97, 217408), (158, 133472), (172, 122608), (194, 108704), (316, 66736), (344, 61304), (388, 54352), (632, 33368), (688, 30652), (776, 27176), (1264, 16684), (1376, 15326), (1552, 13588), (2528, 8342), (2752, 7663), (3104, 6794), (3397, 6208), (4171, 5056)]