18487228

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 37044000

約数和(自身を除く): 18556772

約数列:

[1, 2, 4, 17, 19, 34, 38, 41, 68, 76, 82, 164, 323, 349, 646, 697, 698, 779, 1292, 1394, 1396, 1558, 2788, 3116, 5933, 6631, 11866, 13243, 13262, 14309, 23732, 26486, 26524, 28618, 52972, 57236, 112727, 225454, 243253, 271871, 450908, 486506, 543742, 973012, 1087484, 4621807, 9243614, 18487228]

約数ペア:

[(1, 18487228), (2, 9243614), (4, 4621807), (17, 1087484), (19, 973012), (34, 543742), (38, 486506), (41, 450908), (68, 271871), (76, 243253), (82, 225454), (164, 112727), (323, 57236), (349, 52972), (646, 28618), (697, 26524), (698, 26486), (779, 23732), (1292, 14309), (1394, 13262), (1396, 13243), (1558, 11866), (2788, 6631), (3116, 5933)]