18880506

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 45048960

約数和(自身を除く): 26168454

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 131, 153, 157, 262, 306, 314, 393, 459, 471, 786, 918, 942, 1179, 1413, 2227, 2358, 2669, 2826, 3537, 4239, 4454, 5338, 6681, 7074, 8007, 8478, 13362, 16014, 20043, 20567, 24021, 40086, 41134, 48042, 60129, 61701, 72063, 120258, 123402, 144126, 185103, 349639, 370206, 555309, 699278, 1048917, 1110618, 2097834, 3146751, 6293502, 9440253, 18880506]

約数ペア:

[(1, 18880506), (2, 9440253), (3, 6293502), (6, 3146751), (9, 2097834), (17, 1110618), (18, 1048917), (27, 699278), (34, 555309), (51, 370206), (54, 349639), (102, 185103), (131, 144126), (153, 123402), (157, 120258), (262, 72063), (306, 61701), (314, 60129), (393, 48042), (459, 41134), (471, 40086), (786, 24021), (918, 20567), (942, 20043), (1179, 16014), (1413, 13362), (2227, 8478), (2358, 8007), (2669, 7074), (2826, 6681), (3537, 5338), (4239, 4454)]