19906425

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 45711360

約数和(自身を除く): 25804935

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 25, 27, 33, 35, 45, 55, 63, 75, 77, 99, 105, 135, 165, 175, 189, 225, 231, 275, 297, 315, 383, 385, 495, 525, 675, 693, 825, 945, 1149, 1155, 1485, 1575, 1915, 1925, 2079, 2475, 2681, 3447, 3465, 4213, 4725, 5745, 5775, 7425, 8043, 9575, 10341, 10395, 12639, 13405, 17235, 17325, 21065, 24129, 28725, 29491, 37917, 40215, 51705, 51975, 63195, 67025, 72387, 86175, 88473, 105325, 113751, 120645, 147455, 189585, 201075, 258525, 265419, 315975, 361935, 442365, 568755, 603225, 737275, 796257, 947925, 1327095, 1809675, 2211825, 2843775, 3981285, 6635475, 19906425]

約数ペア:

[(1, 19906425), (3, 6635475), (5, 3981285), (7, 2843775), (9, 2211825), (11, 1809675), (15, 1327095), (21, 947925), (25, 796257), (27, 737275), (33, 603225), (35, 568755), (45, 442365), (55, 361935), (63, 315975), (75, 265419), (77, 258525), (99, 201075), (105, 189585), (135, 147455), (165, 120645), (175, 113751), (189, 105325), (225, 88473), (231, 86175), (275, 72387), (297, 67025), (315, 63195), (383, 51975), (385, 51705), (495, 40215), (525, 37917), (675, 29491), (693, 28725), (825, 24129), (945, 21065), (1149, 17325), (1155, 17235), (1485, 13405), (1575, 12639), (1915, 10395), (1925, 10341), (2079, 9575), (2475, 8043), (2681, 7425), (3447, 5775), (3465, 5745), (4213, 4725)]