28661193

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 47736000

約数和(自身を除く): 19074807

約数列:

[1, 3, 9, 11, 29, 33, 67, 87, 99, 149, 201, 261, 319, 447, 603, 737, 957, 1341, 1639, 1943, 2211, 2871, 4321, 4917, 5829, 6633, 9983, 12963, 14751, 17487, 21373, 29949, 38889, 47531, 64119, 89847, 109813, 142593, 192357, 289507, 329439, 427779, 868521, 988317, 2605563, 3184577, 9553731, 28661193]

約数ペア:

[(1, 28661193), (3, 9553731), (9, 3184577), (11, 2605563), (29, 988317), (33, 868521), (67, 427779), (87, 329439), (99, 289507), (149, 192357), (201, 142593), (261, 109813), (319, 89847), (447, 64119), (603, 47531), (737, 38889), (957, 29949), (1341, 21373), (1639, 17487), (1943, 14751), (2211, 12963), (2871, 9983), (4321, 6633), (4917, 5829)]