21511854

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:622

約数の個数: 96

約数和(自身を含む): 59963904

約数和(自身を除く): 38452050

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 23, 26, 39, 42, 46, 63, 69, 78, 91, 117, 126, 138, 161, 182, 207, 234, 273, 299, 322, 414, 483, 546, 571, 598, 819, 897, 966, 1142, 1449, 1638, 1713, 1794, 2093, 2691, 2898, 3426, 3997, 4186, 5139, 5382, 6279, 7423, 7994, 10278, 11991, 12558, 13133, 14846, 18837, 22269, 23982, 26266, 35973, 37674, 39399, 44538, 51961, 66807, 71946, 78798, 91931, 103922, 118197, 133614, 155883, 170729, 183862, 236394, 275793, 311766, 341458, 467649, 512187, 551586, 827379, 935298, 1024374, 1195103, 1536561, 1654758, 2390206, 3073122, 3585309, 7170618, 10755927, 21511854]

約数ペア:

[(1, 21511854), (2, 10755927), (3, 7170618), (6, 3585309), (7, 3073122), (9, 2390206), (13, 1654758), (14, 1536561), (18, 1195103), (21, 1024374), (23, 935298), (26, 827379), (39, 551586), (42, 512187), (46, 467649), (63, 341458), (69, 311766), (78, 275793), (91, 236394), (117, 183862), (126, 170729), (138, 155883), (161, 133614), (182, 118197), (207, 103922), (234, 91931), (273, 78798), (299, 71946), (322, 66807), (414, 51961), (483, 44538), (546, 39399), (571, 37674), (598, 35973), (819, 26266), (897, 23982), (966, 22269), (1142, 18837), (1449, 14846), (1638, 13133), (1713, 12558), (1794, 11991), (2093, 10278), (2691, 7994), (2898, 7423), (3426, 6279), (3997, 5382), (4186, 5139)]