21501396

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:283

約数の個数: 144

約数和(自身を含む): 68947200

約数和(自身を除く): 47445804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 27, 28, 34, 36, 42, 49, 51, 54, 63, 68, 84, 98, 102, 108, 119, 126, 147, 153, 189, 196, 204, 238, 239, 252, 294, 306, 357, 378, 441, 459, 476, 478, 588, 612, 714, 717, 756, 833, 882, 918, 956, 1071, 1323, 1428, 1434, 1666, 1673, 1764, 1836, 2142, 2151, 2499, 2646, 2868, 3213, 3332, 3346, 4063, 4284, 4302, 4998, 5019, 5292, 6426, 6453, 6692, 7497, 8126, 8604, 9996, 10038, 11711, 12189, 12852, 12906, 14994, 15057, 16252, 20076, 22491, 23422, 24378, 25812, 28441, 29988, 30114, 35133, 36567, 44982, 45171, 46844, 48756, 56882, 60228, 70266, 73134, 85323, 89964, 90342, 105399, 109701, 113764, 140532, 146268, 170646, 180684, 199087, 210798, 219402, 255969, 316197, 341292, 398174, 421596, 438804, 511938, 597261, 632394, 767907, 796348, 1023876, 1194522, 1264788, 1535814, 1791783, 2389044, 3071628, 3583566, 5375349, 7167132, 10750698, 21501396]

約数ペア:

[(1, 21501396), (2, 10750698), (3, 7167132), (4, 5375349), (6, 3583566), (7, 3071628), (9, 2389044), (12, 1791783), (14, 1535814), (17, 1264788), (18, 1194522), (21, 1023876), (27, 796348), (28, 767907), (34, 632394), (36, 597261), (42, 511938), (49, 438804), (51, 421596), (54, 398174), (63, 341292), (68, 316197), (84, 255969), (98, 219402), (102, 210798), (108, 199087), (119, 180684), (126, 170646), (147, 146268), (153, 140532), (189, 113764), (196, 109701), (204, 105399), (238, 90342), (239, 89964), (252, 85323), (294, 73134), (306, 70266), (357, 60228), (378, 56882), (441, 48756), (459, 46844), (476, 45171), (478, 44982), (588, 36567), (612, 35133), (714, 30114), (717, 29988), (756, 28441), (833, 25812), (882, 24378), (918, 23422), (956, 22491), (1071, 20076), (1323, 16252), (1428, 15057), (1434, 14994), (1666, 12906), (1673, 12852), (1764, 12189), (1836, 11711), (2142, 10038), (2151, 9996), (2499, 8604), (2646, 8126), (2868, 7497), (3213, 6692), (3332, 6453), (3346, 6426), (4063, 5292), (4284, 5019), (4302, 4998)]