2155111974

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{72431}}^1$

素因数の和:72490

約数の個数: 64

約数和(自身を含む): 5215104000

約数和(自身を除く): 3059992026

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 29, 38, 54, 57, 58, 87, 114, 171, 174, 261, 342, 513, 522, 551, 783, 1026, 1102, 1566, 1653, 3306, 4959, 9918, 14877, 29754, 72431, 144862, 217293, 434586, 651879, 1303758, 1376189, 1955637, 2100499, 2752378, 3911274, 4128567, 4200998, 6301497, 8257134, 12385701, 12602994, 18904491, 24771402, 37157103, 37808982, 39909481, 56713473, 74314206, 79818962, 113426946, 119728443, 239456886, 359185329, 718370658, 1077555987, 2155111974]

約数ペア:

[(1, 2155111974), (2, 1077555987), (3, 718370658), (6, 359185329), (9, 239456886), (18, 119728443), (19, 113426946), (27, 79818962), (29, 74314206), (38, 56713473), (54, 39909481), (57, 37808982), (58, 37157103), (87, 24771402), (114, 18904491), (171, 12602994), (174, 12385701), (261, 8257134), (342, 6301497), (513, 4200998), (522, 4128567), (551, 3911274), (783, 2752378), (1026, 2100499), (1102, 1955637), (1566, 1376189), (1653, 1303758), (3306, 651879), (4959, 434586), (9918, 217293), (14877, 144862), (29754, 72431)]