19550986

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 19640054

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 71, 89, 91, 119, 142, 178, 182, 221, 238, 442, 497, 623, 923, 994, 1157, 1207, 1246, 1513, 1547, 1846, 2314, 2414, 3026, 3094, 6319, 6461, 8099, 8449, 10591, 12638, 12922, 15691, 16198, 16898, 19669, 21182, 31382, 39338, 44233, 82147, 88466, 107423, 109837, 137683, 164294, 214846, 219674, 275366, 575029, 751961, 1150058, 1396499, 1503922, 2792998, 9775493, 19550986]

約数ペア:

[(1, 19550986), (2, 9775493), (7, 2792998), (13, 1503922), (14, 1396499), (17, 1150058), (26, 751961), (34, 575029), (71, 275366), (89, 219674), (91, 214846), (119, 164294), (142, 137683), (178, 109837), (182, 107423), (221, 88466), (238, 82147), (442, 44233), (497, 39338), (623, 31382), (923, 21182), (994, 19669), (1157, 16898), (1207, 16198), (1246, 15691), (1513, 12922), (1547, 12638), (1846, 10591), (2314, 8449), (2414, 8099), (3026, 6461), (3094, 6319)]