21894045

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3733}}^1$

素因数の和:3781

約数の個数: 32

約数和(自身を含む): 38714112

約数和(自身を除く): 16820067

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3733, 5865, 11199, 18665, 55995, 63461, 85859, 190383, 257577, 317305, 429295, 951915, 1287885, 1459603, 4378809, 7298015, 21894045]

約数ペア:

[(1, 21894045), (3, 7298015), (5, 4378809), (15, 1459603), (17, 1287885), (23, 951915), (51, 429295), (69, 317305), (85, 257577), (115, 190383), (255, 85859), (345, 63461), (391, 55995), (1173, 18665), (1955, 11199), (3733, 5865)]