21053402

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13160998

約数列:

[1, 2, 31, 43, 53, 62, 86, 106, 149, 298, 1333, 1643, 2279, 2666, 3286, 4558, 4619, 6407, 7897, 9238, 12814, 15794, 70649, 141298, 198617, 244807, 339571, 397234, 489614, 679142, 10526701, 21053402]

約数ペア:

[(1, 21053402), (2, 10526701), (31, 679142), (43, 489614), (53, 397234), (62, 339571), (86, 244807), (106, 198617), (149, 141298), (298, 70649), (1333, 15794), (1643, 12814), (2279, 9238), (2666, 7897), (3286, 6407), (4558, 4619)]