21611628

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 58426368

約数和(自身を除く): 36814740

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 607, 774, 828, 989, 1214, 1548, 1821, 1978, 2428, 2967, 3642, 3956, 5463, 5934, 7284, 8901, 10926, 11868, 13961, 17802, 21852, 26101, 27922, 35604, 41883, 52202, 55844, 78303, 83766, 104404, 125649, 156606, 167532, 234909, 251298, 313212, 469818, 502596, 600323, 939636, 1200646, 1800969, 2401292, 3601938, 5402907, 7203876, 10805814, 21611628]

約数ペア:

[(1, 21611628), (2, 10805814), (3, 7203876), (4, 5402907), (6, 3601938), (9, 2401292), (12, 1800969), (18, 1200646), (23, 939636), (36, 600323), (43, 502596), (46, 469818), (69, 313212), (86, 251298), (92, 234909), (129, 167532), (138, 156606), (172, 125649), (207, 104404), (258, 83766), (276, 78303), (387, 55844), (414, 52202), (516, 41883), (607, 35604), (774, 27922), (828, 26101), (989, 21852), (1214, 17802), (1548, 13961), (1821, 11868), (1978, 10926), (2428, 8901), (2967, 7284), (3642, 5934), (3956, 5463)]