217467747

素因数分解:

$3^5\times 7^1\times {\mathrm{173}}^1\times {\mathrm{739}}^1$

素因数の和:934

約数の個数: 48

約数和(自身を含む): 374949120

約数和(自身を除く): 157481373

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 173, 189, 243, 519, 567, 739, 1211, 1557, 1701, 2217, 3633, 4671, 5173, 6651, 10899, 14013, 15519, 19953, 32697, 42039, 46557, 59859, 98091, 127847, 139671, 179577, 294273, 383541, 419013, 894929, 1150623, 1257039, 2684787, 3451869, 8054361, 10355607, 24163083, 31066821, 72489249, 217467747]

約数ペア:

[(1, 217467747), (3, 72489249), (7, 31066821), (9, 24163083), (21, 10355607), (27, 8054361), (63, 3451869), (81, 2684787), (173, 1257039), (189, 1150623), (243, 894929), (519, 419013), (567, 383541), (739, 294273), (1211, 179577), (1557, 139671), (1701, 127847), (2217, 98091), (3633, 59859), (4671, 46557), (5173, 42039), (6651, 32697), (10899, 19953), (14013, 15519)]