201821005

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 263347200

約数和(自身を除く): 61526195

約数列:

[1, 5, 29, 31, 59, 145, 155, 295, 761, 899, 1711, 1829, 3805, 4495, 8555, 9145, 22069, 23591, 44899, 53041, 110345, 117955, 224495, 265205, 684139, 1302071, 1391869, 3420695, 6510355, 6959345, 40364201, 201821005]

約数ペア:

[(1, 201821005), (5, 40364201), (29, 6959345), (31, 6510355), (59, 3420695), (145, 1391869), (155, 1302071), (295, 684139), (761, 265205), (899, 224495), (1711, 117955), (1829, 110345), (3805, 53041), (4495, 44899), (8555, 23591), (9145, 22069)]