21079431380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{19183}}^1$

素因数の和:19413

約数の個数: 96

約数和(自身を含む): 51979124736

約数和(自身を除く): 30899693356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 167, 188, 235, 329, 334, 470, 658, 668, 835, 940, 1169, 1316, 1645, 1670, 2338, 3290, 3340, 4676, 5845, 6580, 7849, 11690, 15698, 19183, 23380, 31396, 38366, 39245, 54943, 76732, 78490, 95915, 109886, 134281, 156980, 191830, 219772, 268562, 274715, 383660, 537124, 549430, 671405, 901601, 1098860, 1342810, 1803202, 2685620, 3203561, 3606404, 4508005, 6311207, 6407122, 9016010, 12622414, 12814244, 16017805, 18032020, 22424927, 25244828, 31556035, 32035610, 44849854, 63112070, 64071220, 89699708, 112124635, 126224140, 150567367, 224249270, 301134734, 448498540, 602269468, 752836835, 1053971569, 1505673670, 2107943138, 3011347340, 4215886276, 5269857845, 10539715690, 21079431380]

約数ペア:

[(1, 21079431380), (2, 10539715690), (4, 5269857845), (5, 4215886276), (7, 3011347340), (10, 2107943138), (14, 1505673670), (20, 1053971569), (28, 752836835), (35, 602269468), (47, 448498540), (70, 301134734), (94, 224249270), (140, 150567367), (167, 126224140), (188, 112124635), (235, 89699708), (329, 64071220), (334, 63112070), (470, 44849854), (658, 32035610), (668, 31556035), (835, 25244828), (940, 22424927), (1169, 18032020), (1316, 16017805), (1645, 12814244), (1670, 12622414), (2338, 9016010), (3290, 6407122), (3340, 6311207), (4676, 4508005), (5845, 3606404), (6580, 3203561), (7849, 2685620), (11690, 1803202), (15698, 1342810), (19183, 1098860), (23380, 901601), (31396, 671405), (38366, 549430), (39245, 537124), (54943, 383660), (76732, 274715), (78490, 268562), (95915, 219772), (109886, 191830), (134281, 156980)]