21225248

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3547}}^1$

素因数の和:3585

約数の個数: 48

約数和(自身を含む): 48281184

約数和(自身を除く): 27055936

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3547, 5984, 7094, 14188, 28376, 39017, 56752, 60299, 78034, 113504, 120598, 156068, 241196, 312136, 482392, 624272, 663289, 964784, 1248544, 1326578, 1929568, 2653156, 5306312, 10612624, 21225248]

約数ペア:

[(1, 21225248), (2, 10612624), (4, 5306312), (8, 2653156), (11, 1929568), (16, 1326578), (17, 1248544), (22, 964784), (32, 663289), (34, 624272), (44, 482392), (68, 312136), (88, 241196), (136, 156068), (176, 120598), (187, 113504), (272, 78034), (352, 60299), (374, 56752), (544, 39017), (748, 28376), (1496, 14188), (2992, 7094), (3547, 5984)]