21506394

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 57226176

約数和(自身を除く): 35719782

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 42, 49, 51, 78, 91, 98, 102, 119, 147, 182, 221, 238, 273, 294, 331, 357, 442, 546, 637, 662, 663, 714, 833, 993, 1274, 1326, 1547, 1666, 1911, 1986, 2317, 2499, 3094, 3822, 4303, 4634, 4641, 4998, 5627, 6951, 8606, 9282, 10829, 11254, 12909, 13902, 16219, 16881, 21658, 25818, 30121, 32438, 32487, 33762, 39389, 48657, 60242, 64974, 73151, 78778, 90363, 97314, 118167, 146302, 180726, 210847, 219453, 236334, 275723, 421694, 438906, 512057, 551446, 632541, 827169, 1024114, 1265082, 1536171, 1654338, 3072342, 3584399, 7168798, 10753197, 21506394]

約数ペア:

[(1, 21506394), (2, 10753197), (3, 7168798), (6, 3584399), (7, 3072342), (13, 1654338), (14, 1536171), (17, 1265082), (21, 1024114), (26, 827169), (34, 632541), (39, 551446), (42, 512057), (49, 438906), (51, 421694), (78, 275723), (91, 236334), (98, 219453), (102, 210847), (119, 180726), (147, 146302), (182, 118167), (221, 97314), (238, 90363), (273, 78778), (294, 73151), (331, 64974), (357, 60242), (442, 48657), (546, 39389), (637, 33762), (662, 32487), (663, 32438), (714, 30121), (833, 25818), (993, 21658), (1274, 16881), (1326, 16219), (1547, 13902), (1666, 12909), (1911, 11254), (1986, 10829), (2317, 9282), (2499, 8606), (3094, 6951), (3822, 5627), (4303, 4998), (4634, 4641)]