19998108

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:228

約数の個数: 108

約数和(自身を含む): 57952440

約数和(自身を除く): 37954332

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 169, 171, 173, 228, 234, 247, 338, 342, 346, 468, 494, 507, 519, 676, 684, 692, 741, 988, 1014, 1038, 1482, 1521, 1557, 2028, 2076, 2223, 2249, 2964, 3042, 3114, 3211, 3287, 4446, 4498, 6084, 6228, 6422, 6574, 6747, 8892, 8996, 9633, 9861, 12844, 13148, 13494, 19266, 19722, 20241, 26988, 28899, 29237, 29583, 38532, 39444, 40482, 42731, 57798, 58474, 59166, 80964, 85462, 87711, 115596, 116948, 118332, 128193, 170924, 175422, 256386, 263133, 350844, 384579, 512772, 526266, 555503, 769158, 1052532, 1111006, 1538316, 1666509, 2222012, 3333018, 4999527, 6666036, 9999054, 19998108]

約数ペア:

[(1, 19998108), (2, 9999054), (3, 6666036), (4, 4999527), (6, 3333018), (9, 2222012), (12, 1666509), (13, 1538316), (18, 1111006), (19, 1052532), (26, 769158), (36, 555503), (38, 526266), (39, 512772), (52, 384579), (57, 350844), (76, 263133), (78, 256386), (114, 175422), (117, 170924), (156, 128193), (169, 118332), (171, 116948), (173, 115596), (228, 87711), (234, 85462), (247, 80964), (338, 59166), (342, 58474), (346, 57798), (468, 42731), (494, 40482), (507, 39444), (519, 38532), (676, 29583), (684, 29237), (692, 28899), (741, 26988), (988, 20241), (1014, 19722), (1038, 19266), (1482, 13494), (1521, 13148), (1557, 12844), (2028, 9861), (2076, 9633), (2223, 8996), (2249, 8892), (2964, 6747), (3042, 6574), (3114, 6422), (3211, 6228), (3287, 6084), (4446, 4498)]