21069828

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 96

約数和(自身を含む): 60368000

約数和(自身を除く): 39298172

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 86, 108, 117, 129, 156, 172, 234, 258, 349, 351, 387, 468, 516, 559, 698, 702, 774, 1047, 1118, 1161, 1396, 1404, 1548, 1677, 2094, 2236, 2322, 3141, 3354, 4188, 4537, 4644, 5031, 6282, 6708, 9074, 9423, 10062, 12564, 13611, 15007, 15093, 18148, 18846, 20124, 27222, 30014, 30186, 37692, 40833, 45021, 54444, 60028, 60372, 81666, 90042, 122499, 135063, 163332, 180084, 195091, 244998, 270126, 390182, 405189, 489996, 540252, 585273, 780364, 810378, 1170546, 1620756, 1755819, 2341092, 3511638, 5267457, 7023276, 10534914, 21069828]

約数ペア:

[(1, 21069828), (2, 10534914), (3, 7023276), (4, 5267457), (6, 3511638), (9, 2341092), (12, 1755819), (13, 1620756), (18, 1170546), (26, 810378), (27, 780364), (36, 585273), (39, 540252), (43, 489996), (52, 405189), (54, 390182), (78, 270126), (86, 244998), (108, 195091), (117, 180084), (129, 163332), (156, 135063), (172, 122499), (234, 90042), (258, 81666), (349, 60372), (351, 60028), (387, 54444), (468, 45021), (516, 40833), (559, 37692), (698, 30186), (702, 30014), (774, 27222), (1047, 20124), (1118, 18846), (1161, 18148), (1396, 15093), (1404, 15007), (1548, 13611), (1677, 12564), (2094, 10062), (2236, 9423), (2322, 9074), (3141, 6708), (3354, 6282), (4188, 5031), (4537, 4644)]