18381284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 36832320

約数和(自身を除く): 18451036

約数列:

[1, 2, 4, 17, 19, 34, 38, 41, 68, 76, 82, 164, 323, 347, 646, 694, 697, 779, 1292, 1388, 1394, 1558, 2788, 3116, 5899, 6593, 11798, 13186, 13243, 14227, 23596, 26372, 26486, 28454, 52972, 56908, 112081, 224162, 241859, 270313, 448324, 483718, 540626, 967436, 1081252, 4595321, 9190642, 18381284]

約数ペア:

[(1, 18381284), (2, 9190642), (4, 4595321), (17, 1081252), (19, 967436), (34, 540626), (38, 483718), (41, 448324), (68, 270313), (76, 241859), (82, 224162), (164, 112081), (323, 56908), (347, 52972), (646, 28454), (694, 26486), (697, 26372), (779, 23596), (1292, 14227), (1388, 13243), (1394, 13186), (1558, 11798), (2788, 6593), (3116, 5899)]