19771365

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 32587776

約数和(自身を除く): 12816411

約数列:

[1, 3, 5, 15, 67, 103, 191, 201, 309, 335, 515, 573, 955, 1005, 1545, 2865, 6901, 12797, 19673, 20703, 34505, 38391, 59019, 63985, 98365, 103515, 191955, 295095, 1318091, 3954273, 6590455, 19771365]

約数ペア:

[(1, 19771365), (3, 6590455), (5, 3954273), (15, 1318091), (67, 295095), (103, 191955), (191, 103515), (201, 98365), (309, 63985), (335, 59019), (515, 38391), (573, 34505), (955, 20703), (1005, 19673), (1545, 12797), (2865, 6901)]