21487648

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 53512704

約数和(自身を除く): 32025056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 47, 52, 56, 91, 94, 104, 112, 157, 182, 188, 208, 224, 314, 329, 364, 376, 416, 611, 628, 658, 728, 752, 1099, 1222, 1256, 1316, 1456, 1504, 2041, 2198, 2444, 2512, 2632, 2912, 4082, 4277, 4396, 4888, 5024, 5264, 7379, 8164, 8554, 8792, 9776, 10528, 14287, 14758, 16328, 17108, 17584, 19552, 28574, 29516, 32656, 34216, 35168, 51653, 57148, 59032, 65312, 68432, 95927, 103306, 114296, 118064, 136864, 191854, 206612, 228592, 236128, 383708, 413224, 457184, 671489, 767416, 826448, 1342978, 1534832, 1652896, 2685956, 3069664, 5371912, 10743824, 21487648]

約数ペア:

[(1, 21487648), (2, 10743824), (4, 5371912), (7, 3069664), (8, 2685956), (13, 1652896), (14, 1534832), (16, 1342978), (26, 826448), (28, 767416), (32, 671489), (47, 457184), (52, 413224), (56, 383708), (91, 236128), (94, 228592), (104, 206612), (112, 191854), (157, 136864), (182, 118064), (188, 114296), (208, 103306), (224, 95927), (314, 68432), (329, 65312), (364, 59032), (376, 57148), (416, 51653), (611, 35168), (628, 34216), (658, 32656), (728, 29516), (752, 28574), (1099, 19552), (1222, 17584), (1256, 17108), (1316, 16328), (1456, 14758), (1504, 14287), (2041, 10528), (2198, 9776), (2444, 8792), (2512, 8554), (2632, 8164), (2912, 7379), (4082, 5264), (4277, 5024), (4396, 4888)]