18403996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 37255680

約数和(自身を除く): 18851684

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 109, 191, 218, 221, 382, 436, 442, 764, 884, 1417, 1853, 2483, 2834, 3247, 3706, 4966, 5668, 6494, 7412, 9932, 12988, 20819, 24089, 41638, 42211, 48178, 83276, 84422, 96356, 168844, 270647, 353923, 541294, 707846, 1082588, 1415692, 4600999, 9201998, 18403996]

約数ペア:

[(1, 18403996), (2, 9201998), (4, 4600999), (13, 1415692), (17, 1082588), (26, 707846), (34, 541294), (52, 353923), (68, 270647), (109, 168844), (191, 96356), (218, 84422), (221, 83276), (382, 48178), (436, 42211), (442, 41638), (764, 24089), (884, 20819), (1417, 12988), (1853, 9932), (2483, 7412), (2834, 6494), (3247, 5668), (3706, 4966)]