21054870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2689}}^1$

素因数の和:2734

約数の個数: 64

約数和(自身を含む): 58104000

約数和(自身を除く): 37049130

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 435, 522, 783, 870, 1305, 1566, 2610, 2689, 3915, 5378, 7830, 8067, 13445, 16134, 24201, 26890, 40335, 48402, 72603, 77981, 80670, 121005, 145206, 155962, 233943, 242010, 363015, 389905, 467886, 701829, 726030, 779810, 1169715, 1403658, 2105487, 2339430, 3509145, 4210974, 7018290, 10527435, 21054870]

約数ペア:

[(1, 21054870), (2, 10527435), (3, 7018290), (5, 4210974), (6, 3509145), (9, 2339430), (10, 2105487), (15, 1403658), (18, 1169715), (27, 779810), (29, 726030), (30, 701829), (45, 467886), (54, 389905), (58, 363015), (87, 242010), (90, 233943), (135, 155962), (145, 145206), (174, 121005), (261, 80670), (270, 77981), (290, 72603), (435, 48402), (522, 40335), (783, 26890), (870, 24201), (1305, 16134), (1566, 13445), (2610, 8067), (2689, 7830), (3915, 5378)]