221750295

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 408167424

約数和(自身を除く): 186417129

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 151, 195, 221, 255, 443, 453, 663, 755, 1105, 1329, 1963, 2215, 2265, 2567, 3315, 5759, 5889, 6645, 7531, 7701, 9815, 12835, 17277, 22593, 28795, 29445, 33371, 37655, 38505, 66893, 86385, 97903, 100113, 112965, 166855, 200679, 293709, 334465, 489515, 500565, 869609, 1003395, 1137181, 1468545, 2608827, 3411543, 4348045, 5685905, 13044135, 14783353, 17057715, 44350059, 73916765, 221750295]

約数ペア:

[(1, 221750295), (3, 73916765), (5, 44350059), (13, 17057715), (15, 14783353), (17, 13044135), (39, 5685905), (51, 4348045), (65, 3411543), (85, 2608827), (151, 1468545), (195, 1137181), (221, 1003395), (255, 869609), (443, 500565), (453, 489515), (663, 334465), (755, 293709), (1105, 200679), (1329, 166855), (1963, 112965), (2215, 100113), (2265, 97903), (2567, 86385), (3315, 66893), (5759, 38505), (5889, 37655), (6645, 33371), (7531, 29445), (7701, 28795), (9815, 22593), (12835, 17277)]