218385492

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{19717}}^1$

素因数の和:19808

約数の個数: 48

約数和(自身を含む): 556520832

約数和(自身を除く): 338135340

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1846, 2769, 3692, 5538, 11076, 19717, 39434, 59151, 78868, 118302, 236604, 256321, 512642, 768963, 1025284, 1399907, 1537926, 2799814, 3075852, 4199721, 5599628, 8399442, 16798884, 18198791, 36397582, 54596373, 72795164, 109192746, 218385492]

約数ペア:

[(1, 218385492), (2, 109192746), (3, 72795164), (4, 54596373), (6, 36397582), (12, 18198791), (13, 16798884), (26, 8399442), (39, 5599628), (52, 4199721), (71, 3075852), (78, 2799814), (142, 1537926), (156, 1399907), (213, 1025284), (284, 768963), (426, 512642), (852, 256321), (923, 236604), (1846, 118302), (2769, 78868), (3692, 59151), (5538, 39434), (11076, 19717)]