21488712

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3457}}^1$

素因数の和:3510

約数の個数: 64

約数和(自身を含む): 63073920

約数和(自身を除く): 41585208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 444, 518, 777, 888, 1036, 1554, 2072, 3108, 3457, 6216, 6914, 10371, 13828, 20742, 24199, 27656, 41484, 48398, 72597, 82968, 96796, 127909, 145194, 193592, 255818, 290388, 383727, 511636, 580776, 767454, 895363, 1023272, 1534908, 1790726, 2686089, 3069816, 3581452, 5372178, 7162904, 10744356, 21488712]

約数ペア:

[(1, 21488712), (2, 10744356), (3, 7162904), (4, 5372178), (6, 3581452), (7, 3069816), (8, 2686089), (12, 1790726), (14, 1534908), (21, 1023272), (24, 895363), (28, 767454), (37, 580776), (42, 511636), (56, 383727), (74, 290388), (84, 255818), (111, 193592), (148, 145194), (168, 127909), (222, 96796), (259, 82968), (296, 72597), (444, 48398), (518, 41484), (777, 27656), (888, 24199), (1036, 20742), (1554, 13828), (2072, 10371), (3108, 6914), (3457, 6216)]