21129432

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 54885600

約数和(自身を除く): 33756168

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 109, 123, 164, 197, 218, 246, 327, 328, 394, 436, 492, 591, 654, 788, 872, 984, 1182, 1308, 1576, 2364, 2616, 4469, 4728, 8077, 8938, 13407, 16154, 17876, 21473, 24231, 26814, 32308, 35752, 42946, 48462, 53628, 64419, 64616, 85892, 96924, 107256, 128838, 171784, 193848, 257676, 515352, 880393, 1760786, 2641179, 3521572, 5282358, 7043144, 10564716, 21129432]

約数ペア:

[(1, 21129432), (2, 10564716), (3, 7043144), (4, 5282358), (6, 3521572), (8, 2641179), (12, 1760786), (24, 880393), (41, 515352), (82, 257676), (109, 193848), (123, 171784), (164, 128838), (197, 107256), (218, 96924), (246, 85892), (327, 64616), (328, 64419), (394, 53628), (436, 48462), (492, 42946), (591, 35752), (654, 32308), (788, 26814), (872, 24231), (984, 21473), (1182, 17876), (1308, 16154), (1576, 13407), (2364, 8938), (2616, 8077), (4469, 4728)]