212956821

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{631}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 384903168

約数和(自身を除く): 171946347

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 487, 631, 693, 1461, 1893, 3409, 4383, 4417, 5357, 5679, 6941, 10227, 13251, 16071, 20823, 30681, 37499, 39753, 48213, 48587, 62469, 112497, 145761, 307297, 337491, 437283, 921891, 2151079, 2765673, 3380267, 6453237, 10140801, 19359711, 23661869, 30422403, 70985607, 212956821]

約数ペア:

[(1, 212956821), (3, 70985607), (7, 30422403), (9, 23661869), (11, 19359711), (21, 10140801), (33, 6453237), (63, 3380267), (77, 2765673), (99, 2151079), (231, 921891), (487, 437283), (631, 337491), (693, 307297), (1461, 145761), (1893, 112497), (3409, 62469), (4383, 48587), (4417, 48213), (5357, 39753), (5679, 37499), (6941, 30681), (10227, 20823), (13251, 16071)]