21616680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 68580000

約数和(自身を除く): 46963320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 361, 380, 456, 499, 570, 722, 760, 998, 1083, 1140, 1444, 1497, 1805, 1996, 2166, 2280, 2495, 2888, 2994, 3610, 3992, 4332, 4990, 5415, 5988, 7220, 7485, 8664, 9481, 9980, 10830, 11976, 14440, 14970, 18962, 19960, 21660, 28443, 29940, 37924, 43320, 47405, 56886, 59880, 75848, 94810, 113772, 142215, 180139, 189620, 227544, 284430, 360278, 379240, 540417, 568860, 720556, 900695, 1080834, 1137720, 1441112, 1801390, 2161668, 2702085, 3602780, 4323336, 5404170, 7205560, 10808340, 21616680]

約数ペア:

[(1, 21616680), (2, 10808340), (3, 7205560), (4, 5404170), (5, 4323336), (6, 3602780), (8, 2702085), (10, 2161668), (12, 1801390), (15, 1441112), (19, 1137720), (20, 1080834), (24, 900695), (30, 720556), (38, 568860), (40, 540417), (57, 379240), (60, 360278), (76, 284430), (95, 227544), (114, 189620), (120, 180139), (152, 142215), (190, 113772), (228, 94810), (285, 75848), (361, 59880), (380, 56886), (456, 47405), (499, 43320), (570, 37924), (722, 29940), (760, 28443), (998, 21660), (1083, 19960), (1140, 18962), (1444, 14970), (1497, 14440), (1805, 11976), (1996, 10830), (2166, 9980), (2280, 9481), (2495, 8664), (2888, 7485), (2994, 7220), (3610, 5988), (3992, 5415), (4332, 4990)]