20883954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1663}}^1$

素因数の和:1711

約数の個数: 64

約数和(自身を含む): 53673984

約数和(自身を除く): 32790030

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 23, 26, 39, 42, 46, 69, 78, 91, 138, 161, 182, 273, 299, 322, 483, 546, 598, 897, 966, 1663, 1794, 2093, 3326, 4186, 4989, 6279, 9978, 11641, 12558, 21619, 23282, 34923, 38249, 43238, 64857, 69846, 76498, 114747, 129714, 151333, 229494, 267743, 302666, 453999, 497237, 535486, 803229, 907998, 994474, 1491711, 1606458, 2983422, 3480659, 6961318, 10441977, 20883954]

約数ペア:

[(1, 20883954), (2, 10441977), (3, 6961318), (6, 3480659), (7, 2983422), (13, 1606458), (14, 1491711), (21, 994474), (23, 907998), (26, 803229), (39, 535486), (42, 497237), (46, 453999), (69, 302666), (78, 267743), (91, 229494), (138, 151333), (161, 129714), (182, 114747), (273, 76498), (299, 69846), (322, 64857), (483, 43238), (546, 38249), (598, 34923), (897, 23282), (966, 21619), (1663, 12558), (1794, 11641), (2093, 9978), (3326, 6279), (4186, 4989)]