21603872

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{263}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 23901280

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 151, 263, 272, 302, 526, 544, 604, 1052, 1208, 2104, 2416, 2567, 4208, 4471, 4832, 5134, 8416, 8942, 10268, 17884, 20536, 35768, 39713, 41072, 71536, 79426, 82144, 143072, 158852, 317704, 635408, 675121, 1270816, 1350242, 2700484, 5400968, 10801936, 21603872]

約数ペア:

[(1, 21603872), (2, 10801936), (4, 5400968), (8, 2700484), (16, 1350242), (17, 1270816), (32, 675121), (34, 635408), (68, 317704), (136, 158852), (151, 143072), (263, 82144), (272, 79426), (302, 71536), (526, 41072), (544, 39713), (604, 35768), (1052, 20536), (1208, 17884), (2104, 10268), (2416, 8942), (2567, 8416), (4208, 5134), (4471, 4832)]