21128869128

素因数分解:

$2^3\times 3^1\times {\mathrm{317}}^1\times {\mathrm{1381}}^1\times {\mathrm{2011}}^1$

素因数の和:3718

約数の個数: 64

約数和(自身を含む): 53053542720

約数和(自身を除く): 31924673592

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 317, 634, 951, 1268, 1381, 1902, 2011, 2536, 2762, 3804, 4022, 4143, 5524, 6033, 7608, 8044, 8286, 11048, 12066, 16088, 16572, 24132, 33144, 48264, 437777, 637487, 875554, 1274974, 1313331, 1751108, 1912461, 2549948, 2626662, 2777191, 3502216, 3824922, 5099896, 5253324, 5554382, 7649844, 8331573, 10506648, 11108764, 15299688, 16663146, 22217528, 33326292, 66652584, 880369547, 1760739094, 2641108641, 3521478188, 5282217282, 7042956376, 10564434564, 21128869128]

約数ペア:

[(1, 21128869128), (2, 10564434564), (3, 7042956376), (4, 5282217282), (6, 3521478188), (8, 2641108641), (12, 1760739094), (24, 880369547), (317, 66652584), (634, 33326292), (951, 22217528), (1268, 16663146), (1381, 15299688), (1902, 11108764), (2011, 10506648), (2536, 8331573), (2762, 7649844), (3804, 5554382), (4022, 5253324), (4143, 5099896), (5524, 3824922), (6033, 3502216), (7608, 2777191), (8044, 2626662), (8286, 2549948), (11048, 1912461), (12066, 1751108), (16088, 1313331), (16572, 1274974), (24132, 875554), (33144, 637487), (48264, 437777)]