21584940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27673}}^1$

素因数の和:27698

約数の個数: 48

約数和(自身を含む): 65089248

約数和(自身を除く): 43504308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 27673, 55346, 83019, 110692, 138365, 166038, 276730, 332076, 359749, 415095, 553460, 719498, 830190, 1079247, 1438996, 1660380, 1798745, 2158494, 3597490, 4316988, 5396235, 7194980, 10792470, 21584940]

約数ペア:

[(1, 21584940), (2, 10792470), (3, 7194980), (4, 5396235), (5, 4316988), (6, 3597490), (10, 2158494), (12, 1798745), (13, 1660380), (15, 1438996), (20, 1079247), (26, 830190), (30, 719498), (39, 553460), (52, 415095), (60, 359749), (65, 332076), (78, 276730), (130, 166038), (156, 138365), (195, 110692), (260, 83019), (390, 55346), (780, 27673)]