21384766

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 36923040

約数和(自身を除く): 15538274

約数列:

[1, 2, 13, 19, 26, 38, 73, 146, 247, 494, 593, 949, 1186, 1387, 1898, 2774, 7709, 11267, 15418, 18031, 22534, 36062, 43289, 86578, 146471, 292942, 562757, 822491, 1125514, 1644982, 10692383, 21384766]

約数ペア:

[(1, 21384766), (2, 10692383), (13, 1644982), (19, 1125514), (26, 822491), (38, 562757), (73, 292942), (146, 146471), (247, 86578), (494, 43289), (593, 36062), (949, 22534), (1186, 18031), (1387, 15418), (1898, 11267), (2774, 7709)]