About the Number

21291244821

21291244820 ← → 21291244822

2進数表記:10011110101000011101001110100010101

漢数字表記:二百十二億九千百二十四万四千八百二十一

素因数分解:

3 3 × 7 1 × 11 2 × 269 1 × 3461 1

素因数の和:3768
約数の個数: 96
約数和(自身を含む): 39782534400
約数和(自身を除く): 18491289579

約数列:
[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 121, 189, 231, 269, 297, 363, 693, 807, 847, 1089, 1883, 2079, 2421, 2541, 2959, 3267, 3461, 5649, 7263, 7623, 8877, 10383, 16947, 20713, 22869, 24227, 26631, 31149, 32549, 38071, 50841, 62139, 72681, 79893, 93447, 97647, 114213, 186417, 218043, 227843, 266497, 292941, 342639, 418781, 559251, 654129, 683529, 799491, 878823, 931009, 1027917, 1256343, 2050587, 2398473, 2793027, 2931467, 3769029, 6151761, 6517063, 7195419, 8379081, 8794401, 10241099, 11307087, 19551189, 25137243, 26383203, 30723297, 58653567, 71687693, 79149609, 92169891, 112652089, 175960701, 215063079, 276509673, 337956267, 645189237, 788564623, 1013868801, 1935567711, 2365693869, 3041606403, 7097081607, 21291244821]

約数ペア:
[(1, 21291244821), (3, 7097081607), (7, 3041606403), (9, 2365693869), (11, 1935567711), (21, 1013868801), (27, 788564623), (33, 645189237), (63, 337956267), (77, 276509673), (99, 215063079), (121, 175960701), (189, 112652089), (231, 92169891), (269, 79149609), (297, 71687693), (363, 58653567), (693, 30723297), (807, 26383203), (847, 25137243), (1089, 19551189), (1883, 11307087), (2079, 10241099), (2421, 8794401), (2541, 8379081), (2959, 7195419), (3267, 6517063), (3461, 6151761), (5649, 3769029), (7263, 2931467), (7623, 2793027), (8877, 2398473), (10383, 2050587), (16947, 1256343), (20713, 1027917), (22869, 931009), (24227, 878823), (26631, 799491), (31149, 683529), (32549, 654129), (38071, 559251), (50841, 418781), (62139, 342639), (72681, 292941), (79893, 266497), (93447, 227843), (97647, 218043), (114213, 186417)]

このpageの処理時間: 0.07044744491577148 seconds