21573272

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 51870720

約数和(自身を除く): 30297448

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 43, 56, 62, 68, 86, 119, 124, 136, 172, 217, 238, 248, 289, 301, 344, 434, 476, 527, 578, 602, 731, 868, 952, 1054, 1156, 1204, 1333, 1462, 1736, 2023, 2108, 2312, 2408, 2666, 2924, 3689, 4046, 4216, 5117, 5332, 5848, 7378, 8092, 8959, 9331, 10234, 10664, 12427, 14756, 16184, 17918, 18662, 20468, 22661, 24854, 29512, 35836, 37324, 40936, 45322, 49708, 62713, 71672, 74648, 86989, 90644, 99416, 125426, 158627, 173978, 181288, 250852, 317254, 347956, 385237, 501704, 634508, 695912, 770474, 1269016, 1540948, 2696659, 3081896, 5393318, 10786636, 21573272]

約数ペア:

[(1, 21573272), (2, 10786636), (4, 5393318), (7, 3081896), (8, 2696659), (14, 1540948), (17, 1269016), (28, 770474), (31, 695912), (34, 634508), (43, 501704), (56, 385237), (62, 347956), (68, 317254), (86, 250852), (119, 181288), (124, 173978), (136, 158627), (172, 125426), (217, 99416), (238, 90644), (248, 86989), (289, 74648), (301, 71672), (344, 62713), (434, 49708), (476, 45322), (527, 40936), (578, 37324), (602, 35836), (731, 29512), (868, 24854), (952, 22661), (1054, 20468), (1156, 18662), (1204, 17918), (1333, 16184), (1462, 14756), (1736, 12427), (2023, 10664), (2108, 10234), (2312, 9331), (2408, 8959), (2666, 8092), (2924, 7378), (3689, 5848), (4046, 5332), (4216, 5117)]