21499683681

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1\times {\mathrm{78893}}^1$

素因数の和:79605

約数の個数: 32

約数和(自身を含む): 34536637440

約数和(自身を除く): 13036953759

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 683, 2049, 4781, 12977, 14343, 38931, 78893, 90839, 236679, 272517, 552251, 1498967, 1656753, 4496901, 10492769, 31478307, 53883919, 161651757, 377187433, 1023794461, 1131562299, 3071383383, 7166561227, 21499683681]

約数ペア:

[(1, 21499683681), (3, 7166561227), (7, 3071383383), (19, 1131562299), (21, 1023794461), (57, 377187433), (133, 161651757), (399, 53883919), (683, 31478307), (2049, 10492769), (4781, 4496901), (12977, 1656753), (14343, 1498967), (38931, 552251), (78893, 272517), (90839, 236679)]