21116030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 22913410

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 83, 95, 103, 130, 166, 190, 206, 247, 415, 494, 515, 830, 1030, 1079, 1235, 1339, 1577, 1957, 2158, 2470, 2678, 3154, 3914, 5395, 6695, 7885, 8549, 9785, 10790, 13390, 15770, 17098, 19570, 20501, 25441, 41002, 42745, 50882, 85490, 102505, 111137, 127205, 162431, 205010, 222274, 254410, 324862, 555685, 812155, 1111370, 1624310, 2111603, 4223206, 10558015, 21116030]

約数ペア:

[(1, 21116030), (2, 10558015), (5, 4223206), (10, 2111603), (13, 1624310), (19, 1111370), (26, 812155), (38, 555685), (65, 324862), (83, 254410), (95, 222274), (103, 205010), (130, 162431), (166, 127205), (190, 111137), (206, 102505), (247, 85490), (415, 50882), (494, 42745), (515, 41002), (830, 25441), (1030, 20501), (1079, 19570), (1235, 17098), (1339, 15770), (1577, 13390), (1957, 10790), (2158, 9785), (2470, 8549), (2678, 7885), (3154, 6695), (3914, 5395)]