19811433

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 29145600

約数和(自身を除く): 9334167

約数列:

[1, 3, 19, 43, 57, 59, 129, 137, 177, 411, 817, 1121, 2451, 2537, 2603, 3363, 5891, 7611, 7809, 8083, 17673, 24249, 48203, 111929, 144609, 153577, 335787, 347569, 460731, 1042707, 6603811, 19811433]

約数ペア:

[(1, 19811433), (3, 6603811), (19, 1042707), (43, 460731), (57, 347569), (59, 335787), (129, 153577), (137, 144609), (177, 111929), (411, 48203), (817, 24249), (1121, 17673), (2451, 8083), (2537, 7809), (2603, 7611), (3363, 5891)]