21751080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 71608320

約数和(自身を除く): 49857240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 73, 78, 104, 120, 130, 146, 156, 191, 195, 219, 260, 292, 312, 365, 382, 390, 438, 520, 573, 584, 730, 764, 780, 876, 949, 955, 1095, 1146, 1460, 1528, 1560, 1752, 1898, 1910, 2190, 2292, 2483, 2847, 2865, 2920, 3796, 3820, 4380, 4584, 4745, 4966, 5694, 5730, 7449, 7592, 7640, 8760, 9490, 9932, 11388, 11460, 12415, 13943, 14235, 14898, 18980, 19864, 22776, 22920, 24830, 27886, 28470, 29796, 37245, 37960, 41829, 49660, 55772, 56940, 59592, 69715, 74490, 83658, 99320, 111544, 113880, 139430, 148980, 167316, 181259, 209145, 278860, 297960, 334632, 362518, 418290, 543777, 557720, 725036, 836580, 906295, 1087554, 1450072, 1673160, 1812590, 2175108, 2718885, 3625180, 4350216, 5437770, 7250360, 10875540, 21751080]

約数ペア:

[(1, 21751080), (2, 10875540), (3, 7250360), (4, 5437770), (5, 4350216), (6, 3625180), (8, 2718885), (10, 2175108), (12, 1812590), (13, 1673160), (15, 1450072), (20, 1087554), (24, 906295), (26, 836580), (30, 725036), (39, 557720), (40, 543777), (52, 418290), (60, 362518), (65, 334632), (73, 297960), (78, 278860), (104, 209145), (120, 181259), (130, 167316), (146, 148980), (156, 139430), (191, 113880), (195, 111544), (219, 99320), (260, 83658), (292, 74490), (312, 69715), (365, 59592), (382, 56940), (390, 55772), (438, 49660), (520, 41829), (573, 37960), (584, 37245), (730, 29796), (764, 28470), (780, 27886), (876, 24830), (949, 22920), (955, 22776), (1095, 19864), (1146, 18980), (1460, 14898), (1528, 14235), (1560, 13943), (1752, 12415), (1898, 11460), (1910, 11388), (2190, 9932), (2292, 9490), (2483, 8760), (2847, 7640), (2865, 7592), (2920, 7449), (3796, 5730), (3820, 5694), (4380, 4966), (4584, 4745)]