21524295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 40449024

約数和(自身を除く): 18924729

約数列:

[1, 3, 5, 13, 15, 17, 39, 43, 51, 65, 85, 129, 151, 195, 215, 221, 255, 453, 559, 645, 663, 731, 755, 1105, 1677, 1963, 2193, 2265, 2567, 2795, 3315, 3655, 5889, 6493, 7701, 8385, 9503, 9815, 10965, 12835, 19479, 28509, 29445, 32465, 33371, 38505, 47515, 84409, 97395, 100113, 110381, 142545, 166855, 253227, 331143, 422045, 500565, 551905, 1266135, 1434953, 1655715, 4304859, 7174765, 21524295]

約数ペア:

[(1, 21524295), (3, 7174765), (5, 4304859), (13, 1655715), (15, 1434953), (17, 1266135), (39, 551905), (43, 500565), (51, 422045), (65, 331143), (85, 253227), (129, 166855), (151, 142545), (195, 110381), (215, 100113), (221, 97395), (255, 84409), (453, 47515), (559, 38505), (645, 33371), (663, 32465), (731, 29445), (755, 28509), (1105, 19479), (1677, 12835), (1963, 10965), (2193, 9815), (2265, 9503), (2567, 8385), (2795, 7701), (3315, 6493), (3655, 5889)]