20912730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1931}}^1$

素因数の和:1979

約数の個数: 48

約数和(自身を含む): 52998624

約数和(自身を除く): 32085894

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 361, 570, 722, 1083, 1805, 1931, 2166, 3610, 3862, 5415, 5793, 9655, 10830, 11586, 19310, 28965, 36689, 57930, 73378, 110067, 183445, 220134, 366890, 550335, 697091, 1100670, 1394182, 2091273, 3485455, 4182546, 6970910, 10456365, 20912730]

約数ペア:

[(1, 20912730), (2, 10456365), (3, 6970910), (5, 4182546), (6, 3485455), (10, 2091273), (15, 1394182), (19, 1100670), (30, 697091), (38, 550335), (57, 366890), (95, 220134), (114, 183445), (190, 110067), (285, 73378), (361, 57930), (570, 36689), (722, 28965), (1083, 19310), (1805, 11586), (1931, 10830), (2166, 9655), (3610, 5793), (3862, 5415)]