218973885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{6491}}^1$

素因数の和:6685

約数の個数: 32

約数和(自身を含む): 379548288

約数和(自身を除く): 160574403

約数列:

[1, 3, 5, 13, 15, 39, 65, 173, 195, 519, 865, 2249, 2595, 6491, 6747, 11245, 19473, 32455, 33735, 84383, 97365, 253149, 421915, 1122943, 1265745, 3368829, 5614715, 14598259, 16844145, 43794777, 72991295, 218973885]

約数ペア:

[(1, 218973885), (3, 72991295), (5, 43794777), (13, 16844145), (15, 14598259), (39, 5614715), (65, 3368829), (173, 1265745), (195, 1122943), (519, 421915), (865, 253149), (2249, 97365), (2595, 84383), (6491, 33735), (6747, 32455), (11245, 19473)]