19896387

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 11438013

約数列:

[1, 3, 7, 21, 67, 79, 179, 201, 237, 469, 537, 553, 1253, 1407, 1659, 3759, 5293, 11993, 14141, 15879, 35979, 37051, 42423, 83951, 98987, 111153, 251853, 296961, 947447, 2842341, 6632129, 19896387]

約数ペア:

[(1, 19896387), (3, 6632129), (7, 2842341), (21, 947447), (67, 296961), (79, 251853), (179, 111153), (201, 98987), (237, 83951), (469, 42423), (537, 37051), (553, 35979), (1253, 15879), (1407, 14141), (1659, 11993), (3759, 5293)]