18972564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:249

約数の個数: 96

約数和(自身を含む): 51838080

約数和(自身を除く): 32865516

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 37, 38, 39, 52, 57, 74, 76, 78, 111, 114, 148, 156, 173, 222, 228, 247, 346, 444, 481, 494, 519, 692, 703, 741, 962, 988, 1038, 1406, 1443, 1482, 1924, 2076, 2109, 2249, 2812, 2886, 2964, 3287, 4218, 4498, 5772, 6401, 6574, 6747, 8436, 8996, 9139, 9861, 12802, 13148, 13494, 18278, 19203, 19722, 25604, 26988, 27417, 36556, 38406, 39444, 42731, 54834, 76812, 83213, 85462, 109668, 121619, 128193, 166426, 170924, 243238, 249639, 256386, 332852, 364857, 486476, 499278, 512772, 729714, 998556, 1459428, 1581047, 3162094, 4743141, 6324188, 9486282, 18972564]

約数ペア:

[(1, 18972564), (2, 9486282), (3, 6324188), (4, 4743141), (6, 3162094), (12, 1581047), (13, 1459428), (19, 998556), (26, 729714), (37, 512772), (38, 499278), (39, 486476), (52, 364857), (57, 332852), (74, 256386), (76, 249639), (78, 243238), (111, 170924), (114, 166426), (148, 128193), (156, 121619), (173, 109668), (222, 85462), (228, 83213), (247, 76812), (346, 54834), (444, 42731), (481, 39444), (494, 38406), (519, 36556), (692, 27417), (703, 26988), (741, 25604), (962, 19722), (988, 19203), (1038, 18278), (1406, 13494), (1443, 13148), (1482, 12802), (1924, 9861), (2076, 9139), (2109, 8996), (2249, 8436), (2812, 6747), (2886, 6574), (2964, 6401), (3287, 5772), (4218, 4498)]