27181845

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 24139755

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 53, 87, 131, 135, 145, 159, 261, 265, 393, 435, 477, 655, 783, 795, 1179, 1305, 1431, 1537, 1965, 2385, 3537, 3799, 3915, 4611, 5895, 6943, 7155, 7685, 11397, 13833, 17685, 18995, 20829, 23055, 34191, 34715, 41499, 56985, 62487, 69165, 102573, 104145, 170955, 187461, 201347, 207495, 312435, 512865, 604041, 937305, 1006735, 1812123, 3020205, 5436369, 9060615, 27181845]

約数ペア:

[(1, 27181845), (3, 9060615), (5, 5436369), (9, 3020205), (15, 1812123), (27, 1006735), (29, 937305), (45, 604041), (53, 512865), (87, 312435), (131, 207495), (135, 201347), (145, 187461), (159, 170955), (261, 104145), (265, 102573), (393, 69165), (435, 62487), (477, 56985), (655, 41499), (783, 34715), (795, 34191), (1179, 23055), (1305, 20829), (1431, 18995), (1537, 17685), (1965, 13833), (2385, 11397), (3537, 7685), (3799, 7155), (3915, 6943), (4611, 5895)]