18830273

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 25236480

約数和(自身を除く): 6406207

約数列:

[1, 7, 11, 19, 61, 77, 133, 209, 211, 427, 671, 1159, 1463, 1477, 2321, 4009, 4697, 8113, 12749, 12871, 16247, 28063, 44099, 89243, 90097, 141581, 244549, 308693, 991067, 1711843, 2690039, 18830273]

約数ペア:

[(1, 18830273), (7, 2690039), (11, 1711843), (19, 991067), (61, 308693), (77, 244549), (133, 141581), (209, 90097), (211, 89243), (427, 44099), (671, 28063), (1159, 16247), (1463, 12871), (1477, 12749), (2321, 8113), (4009, 4697)]