21812768

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:525

約数の個数: 48

約数和(自身を含む): 46035864

約数和(自身を除く): 24223096

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 101, 136, 202, 272, 397, 404, 544, 794, 808, 1588, 1616, 1717, 3176, 3232, 3434, 6352, 6749, 6868, 12704, 13498, 13736, 26996, 27472, 40097, 53992, 54944, 80194, 107984, 160388, 215968, 320776, 641552, 681649, 1283104, 1363298, 2726596, 5453192, 10906384, 21812768]

約数ペア:

[(1, 21812768), (2, 10906384), (4, 5453192), (8, 2726596), (16, 1363298), (17, 1283104), (32, 681649), (34, 641552), (68, 320776), (101, 215968), (136, 160388), (202, 107984), (272, 80194), (397, 54944), (404, 53992), (544, 40097), (794, 27472), (808, 26996), (1588, 13736), (1616, 13498), (1717, 12704), (3176, 6868), (3232, 6749), (3434, 6352)]