18787579419

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1\times {\mathrm{911}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 30033838080

約数和(自身を除く): 11246258661

約数列:

[1, 3, 7, 21, 31, 79, 93, 217, 237, 401, 553, 651, 911, 1203, 1659, 2449, 2733, 2807, 6377, 7347, 8421, 12431, 17143, 19131, 28241, 31679, 37293, 51429, 71969, 84723, 87017, 95037, 197687, 215907, 221753, 261051, 365311, 503783, 593061, 665259, 982049, 1095933, 1511349, 2231039, 2557177, 2946147, 6693117, 6874343, 7671531, 11324641, 15617273, 20623029, 28859569, 33973923, 46851819, 79272487, 86578707, 202016983, 237817461, 606050949, 894646639, 2683939917, 6262526473, 18787579419]

約数ペア:

[(1, 18787579419), (3, 6262526473), (7, 2683939917), (21, 894646639), (31, 606050949), (79, 237817461), (93, 202016983), (217, 86578707), (237, 79272487), (401, 46851819), (553, 33973923), (651, 28859569), (911, 20623029), (1203, 15617273), (1659, 11324641), (2449, 7671531), (2733, 6874343), (2807, 6693117), (6377, 2946147), (7347, 2557177), (8421, 2231039), (12431, 1511349), (17143, 1095933), (19131, 982049), (28241, 665259), (31679, 593061), (37293, 503783), (51429, 365311), (71969, 261051), (84723, 221753), (87017, 215907), (95037, 197687)]