21960216

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 96

約数和(自身を含む): 63180000

約数和(自身を除く): 41219784

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 89, 92, 138, 149, 178, 184, 207, 267, 276, 298, 356, 414, 447, 534, 552, 596, 712, 801, 828, 894, 1068, 1192, 1341, 1602, 1656, 1788, 2047, 2136, 2682, 3204, 3427, 3576, 4094, 5364, 6141, 6408, 6854, 8188, 10281, 10728, 12282, 13261, 13708, 16376, 18423, 20562, 24564, 26522, 27416, 30843, 36846, 39783, 41124, 49128, 53044, 61686, 73692, 79566, 82248, 106088, 119349, 123372, 147384, 159132, 238698, 246744, 305003, 318264, 477396, 610006, 915009, 954792, 1220012, 1830018, 2440024, 2745027, 3660036, 5490054, 7320072, 10980108, 21960216]

約数ペア:

[(1, 21960216), (2, 10980108), (3, 7320072), (4, 5490054), (6, 3660036), (8, 2745027), (9, 2440024), (12, 1830018), (18, 1220012), (23, 954792), (24, 915009), (36, 610006), (46, 477396), (69, 318264), (72, 305003), (89, 246744), (92, 238698), (138, 159132), (149, 147384), (178, 123372), (184, 119349), (207, 106088), (267, 82248), (276, 79566), (298, 73692), (356, 61686), (414, 53044), (447, 49128), (534, 41124), (552, 39783), (596, 36846), (712, 30843), (801, 27416), (828, 26522), (894, 24564), (1068, 20562), (1192, 18423), (1341, 16376), (1602, 13708), (1656, 13261), (1788, 12282), (2047, 10728), (2136, 10281), (2682, 8188), (3204, 6854), (3427, 6408), (3576, 6141), (4094, 5364)]