21467872

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 27883808

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 32, 34, 38, 62, 67, 68, 76, 124, 134, 136, 152, 248, 268, 272, 304, 323, 496, 527, 536, 544, 589, 608, 646, 992, 1054, 1072, 1139, 1178, 1273, 1292, 2077, 2108, 2144, 2278, 2356, 2546, 2584, 4154, 4216, 4556, 4712, 5092, 5168, 8308, 8432, 9112, 9424, 10013, 10184, 10336, 16616, 16864, 18224, 18848, 20026, 20368, 21641, 33232, 35309, 36448, 39463, 40052, 40736, 43282, 66464, 70618, 78926, 80104, 86564, 141236, 157852, 160208, 173128, 282472, 315704, 320416, 346256, 564944, 631408, 670871, 692512, 1129888, 1262816, 1341742, 2683484, 5366968, 10733936, 21467872]

約数ペア:

[(1, 21467872), (2, 10733936), (4, 5366968), (8, 2683484), (16, 1341742), (17, 1262816), (19, 1129888), (31, 692512), (32, 670871), (34, 631408), (38, 564944), (62, 346256), (67, 320416), (68, 315704), (76, 282472), (124, 173128), (134, 160208), (136, 157852), (152, 141236), (248, 86564), (268, 80104), (272, 78926), (304, 70618), (323, 66464), (496, 43282), (527, 40736), (536, 40052), (544, 39463), (589, 36448), (608, 35309), (646, 33232), (992, 21641), (1054, 20368), (1072, 20026), (1139, 18848), (1178, 18224), (1273, 16864), (1292, 16616), (2077, 10336), (2108, 10184), (2144, 10013), (2278, 9424), (2356, 9112), (2546, 8432), (2584, 8308), (4154, 5168), (4216, 5092), (4556, 4712)]