19722178

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2663}}^1$

素因数の和:2718

約数の個数: 24

約数和(自身を含む): 35356608

約数和(自身を除く): 15634430

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 529, 1058, 2663, 3703, 5326, 7406, 18641, 37282, 61249, 122498, 428743, 857486, 1408727, 2817454, 9861089, 19722178]

約数ペア:

[(1, 19722178), (2, 9861089), (7, 2817454), (14, 1408727), (23, 857486), (46, 428743), (161, 122498), (322, 61249), (529, 37282), (1058, 18641), (2663, 7406), (3703, 5326)]