21165690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7753}}^1$

素因数の和:7783

約数の個数: 64

約数和(自身を含む): 62528256

約数和(自身を除く): 41362566

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730, 7753, 15506, 23259, 38765, 46518, 54271, 77530, 100789, 108542, 116295, 162813, 201578, 232590, 271355, 302367, 325626, 503945, 542710, 604734, 705523, 814065, 1007890, 1411046, 1511835, 1628130, 2116569, 3023670, 3527615, 4233138, 7055230, 10582845, 21165690]

約数ペア:

[(1, 21165690), (2, 10582845), (3, 7055230), (5, 4233138), (6, 3527615), (7, 3023670), (10, 2116569), (13, 1628130), (14, 1511835), (15, 1411046), (21, 1007890), (26, 814065), (30, 705523), (35, 604734), (39, 542710), (42, 503945), (65, 325626), (70, 302367), (78, 271355), (91, 232590), (105, 201578), (130, 162813), (182, 116295), (195, 108542), (210, 100789), (273, 77530), (390, 54271), (455, 46518), (546, 38765), (910, 23259), (1365, 15506), (2730, 7753)]