19563908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{757}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 42787584

約数和(自身を除く): 23223676

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 757, 923, 994, 1514, 1846, 1988, 3028, 3692, 5299, 6461, 9841, 10598, 12922, 19682, 21196, 25844, 39364, 53747, 68887, 107494, 137774, 214988, 275548, 376229, 698711, 752458, 1397422, 1504916, 2794844, 4890977, 9781954, 19563908]

約数ペア:

[(1, 19563908), (2, 9781954), (4, 4890977), (7, 2794844), (13, 1504916), (14, 1397422), (26, 752458), (28, 698711), (52, 376229), (71, 275548), (91, 214988), (142, 137774), (182, 107494), (284, 68887), (364, 53747), (497, 39364), (757, 25844), (923, 21196), (994, 19682), (1514, 12922), (1846, 10598), (1988, 9841), (3028, 6461), (3692, 5299)]