21050302

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 42057792

約数和(自身を除く): 21007490

約数列:

[1, 2, 7, 13, 14, 26, 31, 41, 49, 62, 82, 91, 98, 169, 182, 217, 287, 338, 403, 434, 533, 574, 637, 806, 1066, 1183, 1271, 1274, 1519, 2009, 2366, 2542, 2821, 3038, 3731, 4018, 5239, 5642, 6929, 7462, 8281, 8897, 10478, 13858, 16523, 16562, 17794, 19747, 26117, 33046, 36673, 39494, 48503, 52234, 62279, 73346, 97006, 115661, 124558, 214799, 231322, 256711, 339521, 429598, 513422, 679042, 809627, 1503593, 1619254, 3007186, 10525151, 21050302]

約数ペア:

[(1, 21050302), (2, 10525151), (7, 3007186), (13, 1619254), (14, 1503593), (26, 809627), (31, 679042), (41, 513422), (49, 429598), (62, 339521), (82, 256711), (91, 231322), (98, 214799), (169, 124558), (182, 115661), (217, 97006), (287, 73346), (338, 62279), (403, 52234), (434, 48503), (533, 39494), (574, 36673), (637, 33046), (806, 26117), (1066, 19747), (1183, 17794), (1271, 16562), (1274, 16523), (1519, 13858), (2009, 10478), (2366, 8897), (2542, 8281), (2821, 7462), (3038, 6929), (3731, 5642), (4018, 5239)]