21709770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 32411190

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 89, 94, 141, 173, 178, 235, 267, 282, 346, 445, 470, 519, 534, 705, 865, 890, 1038, 1335, 1410, 1730, 2595, 2670, 4183, 5190, 8131, 8366, 12549, 15397, 16262, 20915, 24393, 25098, 30794, 40655, 41830, 46191, 48786, 62745, 76985, 81310, 92382, 121965, 125490, 153970, 230955, 243930, 461910, 723659, 1447318, 2170977, 3618295, 4341954, 7236590, 10854885, 21709770]

約数ペア:

[(1, 21709770), (2, 10854885), (3, 7236590), (5, 4341954), (6, 3618295), (10, 2170977), (15, 1447318), (30, 723659), (47, 461910), (89, 243930), (94, 230955), (141, 153970), (173, 125490), (178, 121965), (235, 92382), (267, 81310), (282, 76985), (346, 62745), (445, 48786), (470, 46191), (519, 41830), (534, 40655), (705, 30794), (865, 25098), (890, 24393), (1038, 20915), (1335, 16262), (1410, 15397), (1730, 12549), (2595, 8366), (2670, 8131), (4183, 5190)]