21469560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:501

約数の個数: 128

約数和(自身を含む): 74995200

約数和(自身を除く): 53525640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 61, 70, 84, 105, 120, 122, 140, 168, 183, 210, 244, 280, 305, 366, 419, 420, 427, 488, 610, 732, 838, 840, 854, 915, 1220, 1257, 1281, 1464, 1676, 1708, 1830, 2095, 2135, 2440, 2514, 2562, 2933, 3352, 3416, 3660, 4190, 4270, 5028, 5124, 5866, 6285, 6405, 7320, 8380, 8540, 8799, 10056, 10248, 11732, 12570, 12810, 14665, 16760, 17080, 17598, 23464, 25140, 25559, 25620, 29330, 35196, 43995, 50280, 51118, 51240, 58660, 70392, 76677, 87990, 102236, 117320, 127795, 153354, 175980, 178913, 204472, 255590, 306708, 351960, 357826, 383385, 511180, 536739, 613416, 715652, 766770, 894565, 1022360, 1073478, 1431304, 1533540, 1789130, 2146956, 2683695, 3067080, 3578260, 4293912, 5367390, 7156520, 10734780, 21469560]

約数ペア:

[(1, 21469560), (2, 10734780), (3, 7156520), (4, 5367390), (5, 4293912), (6, 3578260), (7, 3067080), (8, 2683695), (10, 2146956), (12, 1789130), (14, 1533540), (15, 1431304), (20, 1073478), (21, 1022360), (24, 894565), (28, 766770), (30, 715652), (35, 613416), (40, 536739), (42, 511180), (56, 383385), (60, 357826), (61, 351960), (70, 306708), (84, 255590), (105, 204472), (120, 178913), (122, 175980), (140, 153354), (168, 127795), (183, 117320), (210, 102236), (244, 87990), (280, 76677), (305, 70392), (366, 58660), (419, 51240), (420, 51118), (427, 50280), (488, 43995), (610, 35196), (732, 29330), (838, 25620), (840, 25559), (854, 25140), (915, 23464), (1220, 17598), (1257, 17080), (1281, 16760), (1464, 14665), (1676, 12810), (1708, 12570), (1830, 11732), (2095, 10248), (2135, 10056), (2440, 8799), (2514, 8540), (2562, 8380), (2933, 7320), (3352, 6405), (3416, 6285), (3660, 5866), (4190, 5124), (4270, 5028)]