19928145

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 12972975

約数列:

[1, 3, 5, 15, 67, 79, 201, 237, 251, 335, 395, 753, 1005, 1185, 1255, 3765, 5293, 15879, 16817, 19829, 26465, 50451, 59487, 79395, 84085, 99145, 252255, 297435, 1328543, 3985629, 6642715, 19928145]

約数ペア:

[(1, 19928145), (3, 6642715), (5, 3985629), (15, 1328543), (67, 297435), (79, 252255), (201, 99145), (237, 84085), (251, 79395), (335, 59487), (395, 50451), (753, 26465), (1005, 19829), (1185, 16817), (1255, 15879), (3765, 5293)]