18673395

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 35126784

約数和(自身を除く): 16453389

約数列:

[1, 3, 5, 13, 15, 17, 39, 43, 51, 65, 85, 129, 131, 195, 215, 221, 255, 393, 559, 645, 655, 663, 731, 1105, 1677, 1703, 1965, 2193, 2227, 2795, 3315, 3655, 5109, 5633, 6681, 8385, 8515, 9503, 10965, 11135, 16899, 25545, 28165, 28509, 28951, 33405, 47515, 73229, 84495, 86853, 95761, 142545, 144755, 219687, 287283, 366145, 434265, 478805, 1098435, 1244893, 1436415, 3734679, 6224465, 18673395]

約数ペア:

[(1, 18673395), (3, 6224465), (5, 3734679), (13, 1436415), (15, 1244893), (17, 1098435), (39, 478805), (43, 434265), (51, 366145), (65, 287283), (85, 219687), (129, 144755), (131, 142545), (195, 95761), (215, 86853), (221, 84495), (255, 73229), (393, 47515), (559, 33405), (645, 28951), (655, 28509), (663, 28165), (731, 25545), (1105, 16899), (1677, 11135), (1703, 10965), (1965, 9503), (2193, 8515), (2227, 8385), (2795, 6681), (3315, 5633), (3655, 5109)]