21011340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2633}}^1$

素因数の和:2671

約数の個数: 96

約数和(自身を含む): 70801920

約数和(自身を除く): 49790580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2633, 2660, 3990, 5266, 7899, 7980, 10532, 13165, 15798, 18431, 26330, 31596, 36862, 39495, 50027, 52660, 55293, 73724, 78990, 92155, 100054, 110586, 150081, 157980, 184310, 200108, 221172, 250135, 276465, 300162, 350189, 368620, 500270, 552930, 600324, 700378, 750405, 1000540, 1050567, 1105860, 1400756, 1500810, 1750945, 2101134, 3001620, 3501890, 4202268, 5252835, 7003780, 10505670, 21011340]

約数ペア:

[(1, 21011340), (2, 10505670), (3, 7003780), (4, 5252835), (5, 4202268), (6, 3501890), (7, 3001620), (10, 2101134), (12, 1750945), (14, 1500810), (15, 1400756), (19, 1105860), (20, 1050567), (21, 1000540), (28, 750405), (30, 700378), (35, 600324), (38, 552930), (42, 500270), (57, 368620), (60, 350189), (70, 300162), (76, 276465), (84, 250135), (95, 221172), (105, 200108), (114, 184310), (133, 157980), (140, 150081), (190, 110586), (210, 100054), (228, 92155), (266, 78990), (285, 73724), (380, 55293), (399, 52660), (420, 50027), (532, 39495), (570, 36862), (665, 31596), (798, 26330), (1140, 18431), (1330, 15798), (1596, 13165), (1995, 10532), (2633, 7980), (2660, 7899), (3990, 5266)]