21335076

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:455

約数の個数: 120

約数和(自身を含む): 66675840

約数和(自身を除く): 45340764

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 54, 63, 69, 81, 84, 92, 108, 126, 138, 161, 162, 189, 207, 252, 276, 322, 324, 378, 409, 414, 483, 567, 621, 644, 756, 818, 828, 966, 1134, 1227, 1242, 1449, 1636, 1863, 1932, 2268, 2454, 2484, 2863, 2898, 3681, 3726, 4347, 4908, 5726, 5796, 7362, 7452, 8589, 8694, 9407, 11043, 11452, 13041, 14724, 17178, 17388, 18814, 22086, 25767, 26082, 28221, 33129, 34356, 37628, 44172, 51534, 52164, 56442, 65849, 66258, 77301, 84663, 103068, 112884, 131698, 132516, 154602, 169326, 197547, 231903, 253989, 263396, 309204, 338652, 395094, 463806, 507978, 592641, 761967, 790188, 927612, 1015956, 1185282, 1523934, 1777923, 2370564, 3047868, 3555846, 5333769, 7111692, 10667538, 21335076]

約数ペア:

[(1, 21335076), (2, 10667538), (3, 7111692), (4, 5333769), (6, 3555846), (7, 3047868), (9, 2370564), (12, 1777923), (14, 1523934), (18, 1185282), (21, 1015956), (23, 927612), (27, 790188), (28, 761967), (36, 592641), (42, 507978), (46, 463806), (54, 395094), (63, 338652), (69, 309204), (81, 263396), (84, 253989), (92, 231903), (108, 197547), (126, 169326), (138, 154602), (161, 132516), (162, 131698), (189, 112884), (207, 103068), (252, 84663), (276, 77301), (322, 66258), (324, 65849), (378, 56442), (409, 52164), (414, 51534), (483, 44172), (567, 37628), (621, 34356), (644, 33129), (756, 28221), (818, 26082), (828, 25767), (966, 22086), (1134, 18814), (1227, 17388), (1242, 17178), (1449, 14724), (1636, 13041), (1863, 11452), (1932, 11043), (2268, 9407), (2454, 8694), (2484, 8589), (2863, 7452), (2898, 7362), (3681, 5796), (3726, 5726), (4347, 4908)]