20884448

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{823}}^1$

素因数の和:907

約数の個数: 48

約数和(自身を含む): 45059616

約数和(自身を除く): 24175168

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 104, 122, 208, 244, 416, 488, 793, 823, 976, 1586, 1646, 1952, 3172, 3292, 6344, 6584, 10699, 12688, 13168, 21398, 25376, 26336, 42796, 50203, 85592, 100406, 171184, 200812, 342368, 401624, 652639, 803248, 1305278, 1606496, 2610556, 5221112, 10442224, 20884448]

約数ペア:

[(1, 20884448), (2, 10442224), (4, 5221112), (8, 2610556), (13, 1606496), (16, 1305278), (26, 803248), (32, 652639), (52, 401624), (61, 342368), (104, 200812), (122, 171184), (208, 100406), (244, 85592), (416, 50203), (488, 42796), (793, 26336), (823, 25376), (976, 21398), (1586, 13168), (1646, 12688), (1952, 10699), (3172, 6584), (3292, 6344)]