21224710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 48

約数和(自身を含む): 43612560

約数和(自身を除く): 22387850

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 661, 845, 1235, 1322, 1690, 2470, 3211, 3305, 6422, 6610, 8593, 12559, 16055, 17186, 25118, 32110, 42965, 62795, 85930, 111709, 125590, 163267, 223418, 326534, 558545, 816335, 1117090, 1632670, 2122471, 4244942, 10612355, 21224710]

約数ペア:

[(1, 21224710), (2, 10612355), (5, 4244942), (10, 2122471), (13, 1632670), (19, 1117090), (26, 816335), (38, 558545), (65, 326534), (95, 223418), (130, 163267), (169, 125590), (190, 111709), (247, 85930), (338, 62795), (494, 42965), (661, 32110), (845, 25118), (1235, 17186), (1322, 16055), (1690, 12559), (2470, 8593), (3211, 6610), (3305, 6422)]