21534030

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 144

約数和(自身を含む): 68824080

約数和(自身を除く): 47290050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 49, 57, 63, 70, 90, 95, 98, 105, 114, 126, 133, 147, 171, 190, 210, 245, 257, 266, 285, 294, 315, 342, 399, 441, 490, 514, 570, 630, 665, 735, 771, 798, 855, 882, 931, 1197, 1285, 1330, 1470, 1542, 1710, 1799, 1862, 1995, 2205, 2313, 2394, 2570, 2793, 3598, 3855, 3990, 4410, 4626, 4655, 4883, 5397, 5586, 5985, 7710, 8379, 8995, 9310, 9766, 10794, 11565, 11970, 12593, 13965, 14649, 16191, 16758, 17990, 23130, 24415, 25186, 26985, 27930, 29298, 32382, 34181, 37779, 41895, 43947, 48830, 53970, 62965, 68362, 73245, 75558, 80955, 83790, 87894, 102543, 113337, 125930, 146490, 161910, 170905, 188895, 205086, 219735, 226674, 239267, 307629, 341810, 377790, 439470, 478534, 512715, 566685, 615258, 717801, 1025430, 1133370, 1196335, 1435602, 1538145, 2153403, 2392670, 3076290, 3589005, 4306806, 7178010, 10767015, 21534030]

約数ペア:

[(1, 21534030), (2, 10767015), (3, 7178010), (5, 4306806), (6, 3589005), (7, 3076290), (9, 2392670), (10, 2153403), (14, 1538145), (15, 1435602), (18, 1196335), (19, 1133370), (21, 1025430), (30, 717801), (35, 615258), (38, 566685), (42, 512715), (45, 478534), (49, 439470), (57, 377790), (63, 341810), (70, 307629), (90, 239267), (95, 226674), (98, 219735), (105, 205086), (114, 188895), (126, 170905), (133, 161910), (147, 146490), (171, 125930), (190, 113337), (210, 102543), (245, 87894), (257, 83790), (266, 80955), (285, 75558), (294, 73245), (315, 68362), (342, 62965), (399, 53970), (441, 48830), (490, 43947), (514, 41895), (570, 37779), (630, 34181), (665, 32382), (735, 29298), (771, 27930), (798, 26985), (855, 25186), (882, 24415), (931, 23130), (1197, 17990), (1285, 16758), (1330, 16191), (1470, 14649), (1542, 13965), (1710, 12593), (1799, 11970), (1862, 11565), (1995, 10794), (2205, 9766), (2313, 9310), (2394, 8995), (2570, 8379), (2793, 7710), (3598, 5985), (3855, 5586), (3990, 5397), (4410, 4883), (4626, 4655)]