21900384

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 70447104

約数和(自身を除く): 48546720

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 31, 32, 33, 36, 44, 48, 62, 66, 72, 88, 93, 96, 99, 124, 132, 144, 176, 186, 198, 223, 248, 264, 279, 288, 341, 352, 372, 396, 446, 496, 528, 558, 669, 682, 744, 792, 892, 992, 1023, 1056, 1116, 1338, 1364, 1488, 1584, 1784, 2007, 2046, 2232, 2453, 2676, 2728, 2976, 3069, 3168, 3568, 4014, 4092, 4464, 4906, 5352, 5456, 6138, 6913, 7136, 7359, 8028, 8184, 8928, 9812, 10704, 10912, 12276, 13826, 14718, 16056, 16368, 19624, 20739, 21408, 22077, 24552, 27652, 29436, 32112, 32736, 39248, 41478, 44154, 49104, 55304, 58872, 62217, 64224, 76043, 78496, 82956, 88308, 98208, 110608, 117744, 124434, 152086, 165912, 176616, 221216, 228129, 235488, 248868, 304172, 331824, 353232, 456258, 497736, 608344, 663648, 684387, 706464, 912516, 995472, 1216688, 1368774, 1825032, 1990944, 2433376, 2737548, 3650064, 5475096, 7300128, 10950192, 21900384]

約数ペア:

[(1, 21900384), (2, 10950192), (3, 7300128), (4, 5475096), (6, 3650064), (8, 2737548), (9, 2433376), (11, 1990944), (12, 1825032), (16, 1368774), (18, 1216688), (22, 995472), (24, 912516), (31, 706464), (32, 684387), (33, 663648), (36, 608344), (44, 497736), (48, 456258), (62, 353232), (66, 331824), (72, 304172), (88, 248868), (93, 235488), (96, 228129), (99, 221216), (124, 176616), (132, 165912), (144, 152086), (176, 124434), (186, 117744), (198, 110608), (223, 98208), (248, 88308), (264, 82956), (279, 78496), (288, 76043), (341, 64224), (352, 62217), (372, 58872), (396, 55304), (446, 49104), (496, 44154), (528, 41478), (558, 39248), (669, 32736), (682, 32112), (744, 29436), (792, 27652), (892, 24552), (992, 22077), (1023, 21408), (1056, 20739), (1116, 19624), (1338, 16368), (1364, 16056), (1488, 14718), (1584, 13826), (1784, 12276), (2007, 10912), (2046, 10704), (2232, 9812), (2453, 8928), (2676, 8184), (2728, 8028), (2976, 7359), (3069, 7136), (3168, 6913), (3568, 6138), (4014, 5456), (4092, 5352), (4464, 4906)]