217597184

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3917}}^1$

素因数の和:3971

約数の個数: 72

約数和(自身を含む): 512537088

約数和(自身を除く): 294939904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 868, 896, 992, 1736, 1792, 1984, 3472, 3917, 3968, 6944, 7834, 7936, 13888, 15668, 27419, 27776, 31336, 54838, 55552, 62672, 109676, 121427, 125344, 219352, 242854, 250688, 438704, 485708, 501376, 849989, 877408, 971416, 1002752, 1699978, 1754816, 1942832, 3399956, 3509632, 3885664, 6799912, 7019264, 7771328, 13599824, 15542656, 27199648, 31085312, 54399296, 108798592, 217597184]

約数ペア:

[(1, 217597184), (2, 108798592), (4, 54399296), (7, 31085312), (8, 27199648), (14, 15542656), (16, 13599824), (28, 7771328), (31, 7019264), (32, 6799912), (56, 3885664), (62, 3509632), (64, 3399956), (112, 1942832), (124, 1754816), (128, 1699978), (217, 1002752), (224, 971416), (248, 877408), (256, 849989), (434, 501376), (448, 485708), (496, 438704), (868, 250688), (896, 242854), (992, 219352), (1736, 125344), (1792, 121427), (1984, 109676), (3472, 62672), (3917, 55552), (3968, 54838), (6944, 31336), (7834, 27776), (7936, 27419), (13888, 15668)]