215686506

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{21487}}^1$

素因数の和:21738

約数の個数: 32

約数和(自身を含む): 495083520

約数和(自身を除く): 279397014

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 239, 478, 717, 1434, 1673, 3346, 5019, 10038, 21487, 42974, 64461, 128922, 150409, 300818, 451227, 902454, 5135393, 10270786, 15406179, 30812358, 35947751, 71895502, 107843253, 215686506]

約数ペア:

[(1, 215686506), (2, 107843253), (3, 71895502), (6, 35947751), (7, 30812358), (14, 15406179), (21, 10270786), (42, 5135393), (239, 902454), (478, 451227), (717, 300818), (1434, 150409), (1673, 128922), (3346, 64461), (5019, 42974), (10038, 21487)]