18557028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 54017600

約数和(自身を除く): 35460572

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 211, 252, 349, 422, 633, 698, 844, 1047, 1266, 1396, 1477, 1899, 2094, 2443, 2532, 2954, 3141, 3798, 4188, 4431, 4886, 5908, 6282, 7329, 7596, 8862, 9772, 12564, 13293, 14658, 17724, 21987, 26586, 29316, 43974, 53172, 73639, 87948, 147278, 220917, 294556, 441834, 515473, 662751, 883668, 1030946, 1325502, 1546419, 2061892, 2651004, 3092838, 4639257, 6185676, 9278514, 18557028]

約数ペア:

[(1, 18557028), (2, 9278514), (3, 6185676), (4, 4639257), (6, 3092838), (7, 2651004), (9, 2061892), (12, 1546419), (14, 1325502), (18, 1030946), (21, 883668), (28, 662751), (36, 515473), (42, 441834), (63, 294556), (84, 220917), (126, 147278), (211, 87948), (252, 73639), (349, 53172), (422, 43974), (633, 29316), (698, 26586), (844, 21987), (1047, 17724), (1266, 14658), (1396, 13293), (1477, 12564), (1899, 9772), (2094, 8862), (2443, 7596), (2532, 7329), (2954, 6282), (3141, 5908), (3798, 4886), (4188, 4431)]