21551452020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17104327}}^1$

素因数の和:17104349

約数の個数: 72

約数和(自身を含む): 74711704704

約数和(自身を除く): 53160252684

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17104327, 34208654, 51312981, 68417308, 85521635, 102625962, 119730289, 153938943, 171043270, 205251924, 239460578, 256564905, 307877886, 342086540, 359190867, 478921156, 513129810, 598651445, 615755772, 718381734, 769694715, 1026259620, 1077572601, 1197302890, 1436763468, 1539389430, 1795954335, 2155145202, 2394605780, 3078778860, 3591908670, 4310290404, 5387863005, 7183817340, 10775726010, 21551452020]

約数ペア:

[(1, 21551452020), (2, 10775726010), (3, 7183817340), (4, 5387863005), (5, 4310290404), (6, 3591908670), (7, 3078778860), (9, 2394605780), (10, 2155145202), (12, 1795954335), (14, 1539389430), (15, 1436763468), (18, 1197302890), (20, 1077572601), (21, 1026259620), (28, 769694715), (30, 718381734), (35, 615755772), (36, 598651445), (42, 513129810), (45, 478921156), (60, 359190867), (63, 342086540), (70, 307877886), (84, 256564905), (90, 239460578), (105, 205251924), (126, 171043270), (140, 153938943), (180, 119730289), (210, 102625962), (252, 85521635), (315, 68417308), (420, 51312981), (630, 34208654), (1260, 17104327)]