21922784

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{349}}^1$

素因数の和:523

約数の個数: 48

約数和(自身を含む): 46922400

約数和(自身を除く): 24999616

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 151, 208, 302, 349, 416, 604, 698, 1208, 1396, 1963, 2416, 2792, 3926, 4537, 4832, 5584, 7852, 9074, 11168, 15704, 18148, 31408, 36296, 52699, 62816, 72592, 105398, 145184, 210796, 421592, 685087, 843184, 1370174, 1686368, 2740348, 5480696, 10961392, 21922784]

約数ペア:

[(1, 21922784), (2, 10961392), (4, 5480696), (8, 2740348), (13, 1686368), (16, 1370174), (26, 843184), (32, 685087), (52, 421592), (104, 210796), (151, 145184), (208, 105398), (302, 72592), (349, 62816), (416, 52699), (604, 36296), (698, 31408), (1208, 18148), (1396, 15704), (1963, 11168), (2416, 9074), (2792, 7852), (3926, 5584), (4537, 4832)]