21840156

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2029}}^1$

素因数の和:2075

約数の個数: 72

約数和(自身を含む): 62069280

約数和(自身を除く): 40229124

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 39, 46, 52, 69, 78, 92, 117, 138, 156, 207, 234, 276, 299, 414, 468, 598, 828, 897, 1196, 1794, 2029, 2691, 3588, 4058, 5382, 6087, 8116, 10764, 12174, 18261, 24348, 26377, 36522, 46667, 52754, 73044, 79131, 93334, 105508, 140001, 158262, 186668, 237393, 280002, 316524, 420003, 474786, 560004, 606671, 840006, 949572, 1213342, 1680012, 1820013, 2426684, 3640026, 5460039, 7280052, 10920078, 21840156]

約数ペア:

[(1, 21840156), (2, 10920078), (3, 7280052), (4, 5460039), (6, 3640026), (9, 2426684), (12, 1820013), (13, 1680012), (18, 1213342), (23, 949572), (26, 840006), (36, 606671), (39, 560004), (46, 474786), (52, 420003), (69, 316524), (78, 280002), (92, 237393), (117, 186668), (138, 158262), (156, 140001), (207, 105508), (234, 93334), (276, 79131), (299, 73044), (414, 52754), (468, 46667), (598, 36522), (828, 26377), (897, 24348), (1196, 18261), (1794, 12174), (2029, 10764), (2691, 8116), (3588, 6087), (4058, 5382)]