199921197

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{353}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 309254400

約数和(自身を除く): 109333203

約数列:

[1, 3, 7, 21, 149, 181, 353, 447, 543, 1043, 1059, 1267, 2471, 3129, 3801, 7413, 26969, 52597, 63893, 80907, 157791, 188783, 191679, 368179, 447251, 566349, 1104537, 1341753, 9520057, 28560171, 66640399, 199921197]

約数ペア:

[(1, 199921197), (3, 66640399), (7, 28560171), (21, 9520057), (149, 1341753), (181, 1104537), (353, 566349), (447, 447251), (543, 368179), (1043, 191679), (1059, 188783), (1267, 157791), (2471, 80907), (3129, 63893), (3801, 52597), (7413, 26969)]