19612816

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 20652464

約数列:

[1, 2, 4, 8, 16, 29, 43, 58, 86, 116, 172, 232, 344, 464, 688, 983, 1247, 1966, 2494, 3932, 4988, 7864, 9976, 15728, 19952, 28507, 42269, 57014, 84538, 114028, 169076, 228056, 338152, 456112, 676304, 1225801, 2451602, 4903204, 9806408, 19612816]

約数ペア:

[(1, 19612816), (2, 9806408), (4, 4903204), (8, 2451602), (16, 1225801), (29, 676304), (43, 456112), (58, 338152), (86, 228056), (116, 169076), (172, 114028), (232, 84538), (344, 57014), (464, 42269), (688, 28507), (983, 19952), (1247, 15728), (1966, 9976), (2494, 7864), (3932, 4988)]