21276922

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 34908480

約数和(自身を除く): 13631558

約数列:

[1, 2, 19, 38, 61, 67, 122, 134, 137, 274, 1159, 1273, 2318, 2546, 2603, 4087, 5206, 8174, 8357, 9179, 16714, 18358, 77653, 155306, 158783, 174401, 317566, 348802, 559919, 1119838, 10638461, 21276922]

約数ペア:

[(1, 21276922), (2, 10638461), (19, 1119838), (38, 559919), (61, 348802), (67, 317566), (122, 174401), (134, 158783), (137, 155306), (274, 77653), (1159, 18358), (1273, 16714), (2318, 9179), (2546, 8357), (2603, 8174), (4087, 5206)]