21362410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{503}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 18699542

約数列:

[1, 2, 5, 10, 31, 62, 137, 155, 274, 310, 503, 685, 1006, 1370, 2515, 4247, 5030, 8494, 15593, 21235, 31186, 42470, 68911, 77965, 137822, 155930, 344555, 689110, 2136241, 4272482, 10681205, 21362410]

約数ペア:

[(1, 21362410), (2, 10681205), (5, 4272482), (10, 2136241), (31, 689110), (62, 344555), (137, 155930), (155, 137822), (274, 77965), (310, 68911), (503, 42470), (685, 31186), (1006, 21235), (1370, 15593), (2515, 8494), (4247, 5030)]