21992152

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1777}}^1$

素因数の和:1820

約数の個数: 64

約数和(自身を含む): 53766720

約数和(自身を除く): 31774568

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 182, 221, 238, 364, 442, 476, 728, 884, 952, 1547, 1768, 1777, 3094, 3554, 6188, 7108, 12376, 12439, 14216, 23101, 24878, 30209, 46202, 49756, 60418, 92404, 99512, 120836, 161707, 184808, 211463, 241672, 323414, 392717, 422926, 646828, 785434, 845852, 1293656, 1570868, 1691704, 2749019, 3141736, 5498038, 10996076, 21992152]

約数ペア:

[(1, 21992152), (2, 10996076), (4, 5498038), (7, 3141736), (8, 2749019), (13, 1691704), (14, 1570868), (17, 1293656), (26, 845852), (28, 785434), (34, 646828), (52, 422926), (56, 392717), (68, 323414), (91, 241672), (104, 211463), (119, 184808), (136, 161707), (182, 120836), (221, 99512), (238, 92404), (364, 60418), (442, 49756), (476, 46202), (728, 30209), (884, 24878), (952, 23101), (1547, 14216), (1768, 12439), (1777, 12376), (3094, 7108), (3554, 6188)]