201221415

素因数分解:

$3^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1847}}^1$

素因数の和:2133

約数の個数: 40

約数和(自身を含む): 362244960

約数和(自身を除く): 161023545

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 269, 405, 807, 1345, 1847, 2421, 4035, 5541, 7263, 9235, 12105, 16623, 21789, 27705, 36315, 49869, 83115, 108945, 149607, 249345, 496843, 748035, 1490529, 2484215, 4471587, 7452645, 13414761, 22357935, 40244283, 67073805, 201221415]

約数ペア:

[(1, 201221415), (3, 67073805), (5, 40244283), (9, 22357935), (15, 13414761), (27, 7452645), (45, 4471587), (81, 2484215), (135, 1490529), (269, 748035), (405, 496843), (807, 249345), (1345, 149607), (1847, 108945), (2421, 83115), (4035, 49869), (5541, 36315), (7263, 27705), (9235, 21789), (12105, 16623)]