21394048

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:106

約数の個数: 96

約数和(自身を含む): 49278240

約数和(自身を除く): 27884192

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 43, 46, 52, 64, 86, 92, 104, 128, 169, 172, 184, 208, 299, 338, 344, 368, 416, 559, 598, 676, 688, 736, 832, 989, 1118, 1196, 1352, 1376, 1472, 1664, 1978, 2236, 2392, 2704, 2752, 2944, 3887, 3956, 4472, 4784, 5408, 5504, 7267, 7774, 7912, 8944, 9568, 10816, 12857, 14534, 15548, 15824, 17888, 19136, 21632, 25714, 29068, 31096, 31648, 35776, 38272, 51428, 58136, 62192, 63296, 71552, 102856, 116272, 124384, 126592, 167141, 205712, 232544, 248768, 334282, 411424, 465088, 497536, 668564, 822848, 930176, 1337128, 1645696, 2674256, 5348512, 10697024, 21394048]

約数ペア:

[(1, 21394048), (2, 10697024), (4, 5348512), (8, 2674256), (13, 1645696), (16, 1337128), (23, 930176), (26, 822848), (32, 668564), (43, 497536), (46, 465088), (52, 411424), (64, 334282), (86, 248768), (92, 232544), (104, 205712), (128, 167141), (169, 126592), (172, 124384), (184, 116272), (208, 102856), (299, 71552), (338, 63296), (344, 62192), (368, 58136), (416, 51428), (559, 38272), (598, 35776), (676, 31648), (688, 31096), (736, 29068), (832, 25714), (989, 21632), (1118, 19136), (1196, 17888), (1352, 15824), (1376, 15548), (1472, 14534), (1664, 12857), (1978, 10816), (2236, 9568), (2392, 8944), (2704, 7912), (2752, 7774), (2944, 7267), (3887, 5504), (3956, 5408), (4472, 4784)]