20767908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{541}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 55604864

約数和(自身を除く): 34836956

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 457, 541, 914, 1082, 1371, 1623, 1828, 2164, 2742, 3199, 3246, 3787, 5484, 6398, 6492, 7574, 9597, 11361, 12796, 15148, 19194, 22722, 38388, 45444, 247237, 494474, 741711, 988948, 1483422, 1730659, 2966844, 3461318, 5191977, 6922636, 10383954, 20767908]

約数ペア:

[(1, 20767908), (2, 10383954), (3, 6922636), (4, 5191977), (6, 3461318), (7, 2966844), (12, 1730659), (14, 1483422), (21, 988948), (28, 741711), (42, 494474), (84, 247237), (457, 45444), (541, 38388), (914, 22722), (1082, 19194), (1371, 15148), (1623, 12796), (1828, 11361), (2164, 9597), (2742, 7574), (3199, 6492), (3246, 6398), (3787, 5484)]