21038350

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 42305328

約数和(自身を除く): 21266978

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 53, 85, 106, 170, 265, 425, 467, 530, 850, 901, 934, 1325, 1802, 2335, 2650, 4505, 4670, 7939, 9010, 11675, 15878, 22525, 23350, 24751, 39695, 45050, 49502, 79390, 123755, 198475, 247510, 396950, 420767, 618775, 841534, 1237550, 2103835, 4207670, 10519175, 21038350]

約数ペア:

[(1, 21038350), (2, 10519175), (5, 4207670), (10, 2103835), (17, 1237550), (25, 841534), (34, 618775), (50, 420767), (53, 396950), (85, 247510), (106, 198475), (170, 123755), (265, 79390), (425, 49502), (467, 45050), (530, 39695), (850, 24751), (901, 23350), (934, 22525), (1325, 15878), (1802, 11675), (2335, 9010), (2650, 7939), (4505, 4670)]