20392974

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5581}}^1$

素因数の和:5625

約数の個数: 48

約数和(自身を含む): 52247520

約数和(自身を除く): 31854546

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 522, 609, 1218, 1827, 3654, 5581, 11162, 16743, 33486, 39067, 50229, 78134, 100458, 117201, 161849, 234402, 323698, 351603, 485547, 703206, 971094, 1132943, 1456641, 2265886, 2913282, 3398829, 6797658, 10196487, 20392974]

約数ペア:

[(1, 20392974), (2, 10196487), (3, 6797658), (6, 3398829), (7, 2913282), (9, 2265886), (14, 1456641), (18, 1132943), (21, 971094), (29, 703206), (42, 485547), (58, 351603), (63, 323698), (87, 234402), (126, 161849), (174, 117201), (203, 100458), (261, 78134), (406, 50229), (522, 39067), (609, 33486), (1218, 16743), (1827, 11162), (3654, 5581)]