21709332

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 57972096

約数和(自身を除く): 36262764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 157, 167, 207, 276, 314, 334, 414, 471, 501, 628, 668, 828, 942, 1002, 1413, 1503, 1884, 2004, 2826, 3006, 3611, 3841, 5652, 6012, 7222, 7682, 10833, 11523, 14444, 15364, 21666, 23046, 26219, 32499, 34569, 43332, 46092, 52438, 64998, 69138, 78657, 104876, 129996, 138276, 157314, 235971, 314628, 471942, 603037, 943884, 1206074, 1809111, 2412148, 3618222, 5427333, 7236444, 10854666, 21709332]

約数ペア:

[(1, 21709332), (2, 10854666), (3, 7236444), (4, 5427333), (6, 3618222), (9, 2412148), (12, 1809111), (18, 1206074), (23, 943884), (36, 603037), (46, 471942), (69, 314628), (92, 235971), (138, 157314), (157, 138276), (167, 129996), (207, 104876), (276, 78657), (314, 69138), (334, 64998), (414, 52438), (471, 46092), (501, 43332), (628, 34569), (668, 32499), (828, 26219), (942, 23046), (1002, 21666), (1413, 15364), (1503, 14444), (1884, 11523), (2004, 10833), (2826, 7682), (3006, 7222), (3611, 6012), (3841, 5652)]